replacing the old HTML user guide with a Sphinx-managed user guide

29 files changed, 2522 insertions, 0 deletions

diff --git a/user_guide_src/source/general/alternative_php.rst b/user_guide_src/source/general/alternative_php.rst
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+###################################
+Alternate PHP Syntax for View Files
+###################################
+
+If you do not utilize CodeIgniter's :doc:`template
+engine <../libraries/parser>`, you'll be using pure PHP in your
+View files. To minimize the PHP code in these files, and to make it
+easier to identify the code blocks it is recommended that you use PHPs
+alternative syntax for control structures and short tag echo statements.
+If you are not familiar with this syntax, it allows you to eliminate the
+braces from your code, and eliminate "echo" statements.
+
+Automatic Short Tag Support
+===========================
+
+.. note:: If you find that the syntax described in this page does not
+	work on your server it might be that "short tags" are disabled in your
+	PHP ini file. CodeIgniter will optionally rewrite short tags on-the-fly,
+	allowing you to use that syntax even if your server doesn't support it.
+	This feature can be enabled in your config/config.php file.
+
+Please note that if you do use this feature, if PHP errors are
+encountered in your **view files**, the error message and line number
+will not be accurately shown. Instead, all errors will be shown as
+eval() errors.
+
+Alternative Echos
+=================
+
+Normally to echo, or print out a variable you would do this::
+
+	<?php echo $variable; ?>
+
+With the alternative syntax you can instead do it this way::
+
+	<?=$variable?>
+
+Alternative Control Structures
+==============================
+
+Controls structures, like if, for, foreach, and while can be written in
+a simplified format as well. Here is an example using foreach::
+
+	 <ul>  <?php foreach ($todo as $item): ?>  <li><?=$item?></li>  <?php endforeach; ?>  </ul>
+
+Notice that there are no braces. Instead, the end brace is replaced with
+endforeach. Each of the control structures listed above has a similar
+closing syntax: endif, endfor, endforeach, and endwhile
+
+Also notice that instead of using a semicolon after each structure
+(except the last one), there is a colon. This is important!
+
+Here is another example, using if/elseif/else. Notice the colons::
+
+	<?php if ($username == 'sally'): ?>     <h3>Hi Sally</h3>  <?php elseif ($username == 'joe'): ?>     <h3>Hi Joe</h3>  <?php else: ?>     <h3>Hi unknown user</h3>  <?php endif; ?>
+
diff --git a/user_guide_src/source/general/ancillary_classes.rst b/user_guide_src/source/general/ancillary_classes.rst
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+##########################
+Creating Ancillary Classes
+##########################
+
+In some cases you may want to develop classes that exist apart from your
+controllers but have the ability to utilize all of CodeIgniter's
+resources. This is easily possible as you'll see.
+
+get_instance()
+===============
+
+**Any class that you instantiate within your controller functions can
+access CodeIgniter's native resources** simply by using the
+get_instance() function. This function returns the main CodeIgniter
+object.
+
+Normally, to call any of the available CodeIgniter functions requires
+you to use the $this construct::
+
+	 $this->load->helper('url'); $this->load->library('session'); $this->config->item('base_url'); etc.
+
+$this, however, only works within your controllers, your models, or your
+views. If you would like to use CodeIgniter's classes from within your
+own custom classes you can do so as follows:
+
+First, assign the CodeIgniter object to a variable::
+
+	$CI =& get_instance();
+
+Once you've assigned the object to a variable, you'll use that variable
+*instead* of $this::
+
+	 $CI =& get_instance(); $CI->load->helper('url'); $CI->load->library('session'); $CI->config->item('base_url'); etc.
+
+.. note:: You'll notice that the above get_instance() function is being
+	passed by reference::
+
+ 		$CI =& get_instance();
+	
+	This is very important. Assigning by reference allows you to use the
+	original CodeIgniter object rather than creating a copy of it.
diff --git a/user_guide_src/source/general/autoloader.rst b/user_guide_src/source/general/autoloader.rst
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+######################
+Auto-loading Resources
+######################
+
+CodeIgniter comes with an "Auto-load" feature that permits libraries,
+helpers, and models to be initialized automatically every time the
+system runs. If you need certain resources globally throughout your
+application you should consider auto-loading them for convenience.
+
+The following items can be loaded automatically:
+
+-  Core classes found in the "libraries" folder
+-  Helper files found in the "helpers" folder
+-  Custom config files found in the "config" folder
+-  Language files found in the "system/language" folder
+-  Models found in the "models" folder
+
+To autoload resources, open the application/config/autoload.php file and
+add the item you want loaded to the autoload array. You'll find
+instructions in that file corresponding to each type of item.
+
+.. note:: Do not include the file extension (.php) when adding items to
+	the autoload array.
diff --git a/user_guide_src/source/general/caching.rst b/user_guide_src/source/general/caching.rst
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+################
+Web Page Caching
+################
+
+CodeIgniter lets you cache your pages in order to achieve maximum
+performance.
+
+Although CodeIgniter is quite fast, the amount of dynamic information
+you display in your pages will correlate directly to the server
+resources, memory, and processing cycles utilized, which affect your
+page load speeds. By caching your pages, since they are saved in their
+fully rendered state, you can achieve performance that nears that of
+static web pages.
+
+How Does Caching Work?
+======================
+
+Caching can be enabled on a per-page basis, and you can set the length
+of time that a page should remain cached before being refreshed. When a
+page is loaded for the first time, the cache file will be written to
+your application/cache folder. On subsequent page loads the cache file
+will be retrieved and sent to the requesting user's browser. If it has
+expired, it will be deleted and refreshed before being sent to the
+browser.
+
+Note: The Benchmark tag is not cached so you can still view your page
+load speed when caching is enabled.
+
+Enabling Caching
+================
+
+To enable caching, put the following tag in any of your controller
+functions::
+
+	$this->output->cache(n);
+
+Where n is the number of **minutes** you wish the page to remain cached
+between refreshes.
+
+The above tag can go anywhere within a function. It is not affected by
+the order that it appears, so place it wherever it seems most logical to
+you. Once the tag is in place, your pages will begin being cached.
+
+**Warning:** Because of the way CodeIgniter stores content for output,
+caching will only work if you are generating display for your controller
+with a :doc:`view <./views>`.
+
+.. note:: Before the cache files can be written you must set the file
+	permissions on your application/cache folder such that it is writable.
+
+Deleting Caches
+===============
+
+If you no longer wish to cache a file you can remove the caching tag and
+it will no longer be refreshed when it expires. Note: Removing the tag
+will not delete the cache immediately. It will have to expire normally.
+If you need to remove it earlier you will need to manually delete it
+from your cache folder.
diff --git a/user_guide_src/source/general/cli.rst b/user_guide_src/source/general/cli.rst
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+###################
+Running via the CLI
+###################
+
+As well as calling an applications :doc:`Controllers <./controllers>`
+via the URL in a browser they can also be loaded via the command-line
+interface (CLI).
+
+-  `What is the CLI? <#what>`_
+-  `Why use this method? <#why>`_
+-  `How does it work? <#how>`_
+
+What is the CLI?
+================
+
+The command-line interface is a text-based method of interacting with
+computers. For more information, check the `Wikipedia
+article <http://en.wikipedia.org/wiki/Command-line_interface>`_.
+
+Why run via the command-line?
+=============================
+
+There are many reasons for running CodeIgniter from the command-line,
+but they are not always obvious.
+
+-  Run your cron-jobs without needing to use wget or curl
+-  Make your cron-jobs inaccessible from being loaded in the URL by
+   checking for ``$this->input->is_cli_request()``
+-  Make interactive "tasks" that can do things like set permissions,
+   prune cache folders, run backups, etc.
+-  Integrate with other applications in other languages. For example, a
+   random C++ script could call one command and run code in your models!
+
+Let's try it: Hello World!
+==========================
+
+Let's create a simple controller so you can see it in action. Using your
+text editor, create a file called tools.php, and put the following code
+in it:
+
+<?php class Tools extends CI_Controller { public function message($to =
+'World') { echo "Hello {$to}!".PHP_EOL; } } ?>
+Then save the file to your application/controllers/ folder.
+
+Now normally you would visit the your site using a URL similar to this::
+
+	example.com/index.php/tools/message/to
+
+Instead, we are going to open Terminal in Mac/Lunix or go to Run > "cmd"
+in Windows and navigate to our CodeIgniter project.
+
+	$ cd /path/to/project;
+	$ php index.php tools message
+
+If you did it right, you should see Hello World!.
+
+	$ php index.php tools message "John Smith"
+
+Here we are passing it a argument in the same way that URL parameters
+work. "John Smith" is passed as a argument and output is: Hello John
+Smith!.
+
+That's it!
+==========
+
+That, in a nutshell, is all there is to know about controllers on the
+command line. Remember that this is just a normal controller, so routing
+and _remap works fine.
diff --git a/user_guide_src/source/general/common_functions.rst b/user_guide_src/source/general/common_functions.rst
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+################
+Common Functions
+################
+
+CodeIgniter uses a few functions for its operation that are globally
+defined, and are available to you at any point. These do not require
+loading any libraries or helpers.
+
+is_php('version_number')
+==========================
+
+is_php() determines of the PHP version being used is greater than the
+supplied version_number.
+
+::
+
+	if (is_php('5.3.0')) {     $str = quoted_printable_encode($str); }
+
+Returns boolean TRUE if the installed version of PHP is equal to or
+greater than the supplied version number. Returns FALSE if the installed
+version of PHP is lower than the supplied version number.
+
+is_really_writable('path/to/file')
+====================================
+
+is_writable() returns TRUE on Windows servers when you really can't
+write to the file as the OS reports to PHP as FALSE only if the
+read-only attribute is marked. This function determines if a file is
+actually writable by attempting to write to it first. Generally only
+recommended on platforms where this information may be unreliable.
+
+::
+
+	if (is_really_writable('file.txt')) {     echo "I could write to this if I wanted to"; } else {     echo "File is not writable"; }
+
+config_item('item_key')
+=========================
+
+The :doc:`Config library <../libraries/config>` is the preferred way of
+accessing configuration information, however config_item() can be used
+to retrieve single keys. See Config library documentation for more
+information.
+
+show_error('message'), show_404('page'), log_message('level',
+'message')
+==========
+
+These are each outlined on the :doc:`Error Handling <errors>` page.
+
+set_status_header(code, 'text');
+==================================
+
+Permits you to manually set a server status header. Example::
+
+	set_status_header(401); // Sets the header as:  Unauthorized
+
+`See here <http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html>`_ for
+a full list of headers.
+
+remove_invisible_characters($str)
+===================================
+
+This function prevents inserting null characters between ascii
+characters, like Java\\0script.
+
+html_escape($mixed)
+====================
+
+This function provides short cut for htmlspecialchars() function. It
+accepts string and array. To prevent Cross Site Scripting (XSS), it is
+very useful.
diff --git a/user_guide_src/source/general/controllers.rst b/user_guide_src/source/general/controllers.rst
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+###########
+Controllers
+###########
+
+Controllers are the heart of your application, as they determine how
+HTTP requests should be handled.
+
+-  `What is a Controller? <#what>`_
+-  `Hello World <#hello>`_
+-  `Functions <#functions>`_
+-  `Passing URI Segments to Your Functions <#passinguri>`_
+-  `Defining a Default Controller <#default>`_
+-  `Remapping Function Calls <#remapping>`_
+-  `Controlling Output Data <#output>`_
+-  `Private Functions <#private>`_
+-  `Organizing Controllers into Sub-folders <#subfolders>`_
+-  `Class Constructors <#constructors>`_
+-  `Reserved Function Names <#reserved>`_
+
+What is a Controller?
+=====================
+
+A Controller is simply a class file that is named in a way that can be
+associated with a URI.
+
+Consider this URI::
+
+	example.com/index.php/blog/
+
+In the above example, CodeIgniter would attempt to find a controller
+named blog.php and load it.
+
+**When a controller's name matches the first segment of a URI, it will
+be loaded.**
+
+Let's try it: Hello World!
+==========================
+
+Let's create a simple controller so you can see it in action. Using your
+text editor, create a file called blog.php, and put the following code
+in it:
+
+<?php class Blog extends CI_Controller { public function index() { echo
+'Hello World!'; } } ?>
+Then save the file to your application/controllers/ folder.
+
+Now visit the your site using a URL similar to this::
+
+	example.com/index.php/blog/
+
+If you did it right, you should see Hello World!.
+
+Note: Class names must start with an uppercase letter. In other words,
+this is valid::
+
+	<?php class Blog extends CI_Controller {  } ?>
+
+This is **not** valid::
+
+	<?php class blog extends CI_Controller {  } ?>
+
+Also, always make sure your controller extends the parent controller
+class so that it can inherit all its functions.
+
+Functions
+=========
+
+In the above example the function name is index(). The "index" function
+is always loaded by default if the **second segment** of the URI is
+empty. Another way to show your "Hello World" message would be this::
+
+	example.com/index.php/blog/index/
+
+**The second segment of the URI determines which function in the
+controller gets called.**
+
+Let's try it. Add a new function to your controller:
+
+<?php class Blog extends CI_Controller { public function index() { echo
+'Hello World!'; } public function comments() { echo 'Look at this!'; } }
+?>
+Now load the following URL to see the comment function::
+
+	example.com/index.php/blog/comments/
+
+You should see your new message.
+
+Passing URI Segments to your Functions
+======================================
+
+If your URI contains more then two segments they will be passed to your
+function as parameters.
+
+For example, lets say you have a URI like this::
+
+	example.com/index.php/products/shoes/sandals/123
+
+Your function will be passed URI segments 3 and 4 ("sandals" and "123")::
+
+	 <?php class Products extends CI_Controller {      public function shoes($sandals, $id)     {         echo $sandals;         echo $id;     } } ?>
+
+.. important:: If you are using the :doc:`URI Routing <routing>`
+	feature, the segments passed to your function will be the re-routed
+	ones.
+
+Defining a Default Controller
+=============================
+
+CodeIgniter can be told to load a default controller when a URI is not
+present, as will be the case when only your site root URL is requested.
+To specify a default controller, open your application/config/routes.php
+file and set this variable::
+
+	$route['default_controller'] = 'Blog';
+
+Where Blog is the name of the controller class you want used. If you now
+load your main index.php file without specifying any URI segments you'll
+see your Hello World message by default.
+
+Remapping Function Calls
+========================
+
+As noted above, the second segment of the URI typically determines which
+function in the controller gets called. CodeIgniter permits you to
+override this behavior through the use of the _remap() function::
+
+	public function _remap() {     // Some code here... }
+
+.. important:: If your controller contains a function named _remap(),
+	it will **always** get called regardless of what your URI contains. It
+	overrides the normal behavior in which the URI determines which function
+	is called, allowing you to define your own function routing rules.
+
+The overridden function call (typically the second segment of the URI)
+will be passed as a parameter to the _remap() function::
+
+	public function _remap($method) {     if ($method == 'some_method')     {         $this->$method();     }     else     {         $this->default_method();     } }
+
+Any extra segments after the method name are passed into _remap() as an
+optional second parameter. This array can be used in combination with
+PHP's `call_user_func_array <http://php.net/call_user_func_array>`_
+to emulate CodeIgniter's default behavior.
+
+::
+
+	public function _remap($method, $params = array()) {     $method = 'process_'.$method;     if (method_exists($this, $method))     {         return call_user_func_array(array($this, $method), $params);     }     show_404(); }
+
+Processing Output
+=================
+
+CodeIgniter has an output class that takes care of sending your final
+rendered data to the web browser automatically. More information on this
+can be found in the :doc::doc:`Views <views>` and `Output
+class <../libraries/output>` pages. In some cases, however, you
+might want to post-process the finalized data in some way and send it to
+the browser yourself. CodeIgniter permits you to add a function named
+_output() to your controller that will receive the finalized output
+data.
+
+.. important:: If your controller contains a function named _output(),
+	it will **always** be called by the output class instead of echoing the
+	finalized data directly. The first parameter of the function will
+	contain the finalized output.
+
+Here is an example::
+
+	 public function _output($output) {     echo $output; }
+
+Please note that your _output() function will receive the data in its
+finalized state. Benchmark and memory usage data will be rendered, cache
+files written (if you have caching enabled), and headers will be sent
+(if you use that :doc:`feature <../libraries/output>`) before it is
+handed off to the _output() function.
+To have your controller's output cached properly, its _output() method
+can use::
+
+	if ($this->output->cache_expiration > 0) {     $this->output->_write_cache($output); }
+
+If you are using this feature the page execution timer and memory usage
+stats might not be perfectly accurate since they will not take into
+acccount any further processing you do. For an alternate way to control
+output *before* any of the final processing is done, please see the
+available methods in the :doc:`Output Class <../libraries/output>`.
+
+Private Functions
+=================
+
+In some cases you may want certain functions hidden from public access.
+To make a function private, simply add an underscore as the name prefix
+and it will not be served via a URL request. For example, if you were to
+have a function like this::
+
+	 private function _utility() {   // some code }
+
+Trying to access it via the URL, like this, will not work::
+
+	example.com/index.php/blog/_utility/
+
+Organizing Your Controllers into Sub-folders
+============================================
+
+If you are building a large application you might find it convenient to
+organize your controllers into sub-folders. CodeIgniter permits you to
+do this.
+
+Simply create folders within your application/controllers directory and
+place your controller classes within them.
+
+.. note:: When using this feature the first segment of your URI must
+	specify the folder. For example, lets say you have a controller located
+	here::
+
+		application/controllers/products/shoes.php
+
+	To call the above controller your URI will look something like this::
+
+		example.com/index.php/products/shoes/show/123
+
+Each of your sub-folders may contain a default controller which will be
+called if the URL contains only the sub-folder. Simply name your default
+controller as specified in your application/config/routes.php file
+
+CodeIgniter also permits you to remap your URIs using its :doc:`URI
+Routing <routing>` feature.
+
+Class Constructors
+==================
+
+If you intend to use a constructor in any of your Controllers, you
+**MUST** place the following line of code in it::
+
+	parent::__construct();
+
+The reason this line is necessary is because your local constructor will
+be overriding the one in the parent controller class so we need to
+manually call it.
+
+::
+
+	 <?php class Blog extends CI_Controller {         public function __construct()        {             parent::__construct();             // Your own constructor code        } } ?>
+
+Constructors are useful if you need to set some default values, or run a
+default process when your class is instantiated. Constructors can't
+return a value, but they can do some default work.
+
+Reserved Function Names
+=======================
+
+Since your controller classes will extend the main application
+controller you must be careful not to name your functions identically to
+the ones used by that class, otherwise your local functions will
+override them. See :doc:`Reserved Names <reserved_names>` for a full
+list.
+
+That's it!
+==========
+
+That, in a nutshell, is all there is to know about controllers.
diff --git a/user_guide_src/source/general/core_classes.rst b/user_guide_src/source/general/core_classes.rst
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+############################
+Creating Core System Classes
+############################
+
+Every time CodeIgniter runs there are several base classes that are
+initialized automatically as part of the core framework. It is possible,
+however, to swap any of the core system classes with your own versions
+or even extend the core versions.
+
+**Most users will never have any need to do this, but the option to
+replace or extend them does exist for those who would like to
+significantly alter the CodeIgniter core.**
+
+.. note:: Messing with a core system class has a lot of implications, so
+	make sure you know what you are doing before attempting it.
+
+System Class List
+=================
+
+The following is a list of the core system files that are invoked every
+time CodeIgniter runs:
+
+-  Benchmark
+-  Config
+-  Controller
+-  Exceptions
+-  Hooks
+-  Input
+-  Language
+-  Loader
+-  Log
+-  Output
+-  Router
+-  URI
+-  Utf8
+
+Replacing Core Classes
+======================
+
+To use one of your own system classes instead of a default one simply
+place your version inside your local application/core directory::
+
+	application/core/some-class.php
+
+If this directory does not exist you can create it.
+
+Any file named identically to one from the list above will be used
+instead of the one normally used.
+
+Please note that your class must use CI as a prefix. For example, if
+your file is named Input.php the class will be named::
+
+	 class CI_Input {  }
+
+Extending Core Class
+====================
+
+If all you need to do is add some functionality to an existing library -
+perhaps add a function or two - then it's overkill to replace the entire
+library with your version. In this case it's better to simply extend the
+class. Extending a class is nearly identical to replacing a class with a
+couple exceptions:
+
+-  The class declaration must extend the parent class.
+-  Your new class name and filename must be prefixed with MY\_ (this
+   item is configurable. See below.).
+
+For example, to extend the native Input class you'll create a file named
+application/core/MY_Input.php, and declare your class with::
+
+	 class MY_Input extends CI_Input {  }
+
+Note: If you need to use a constructor in your class make sure you
+extend the parent constructor::
+
+	 class MY_Input extends CI_Input {      function __construct()     {         parent::__construct();     } }
+
+**Tip:** Any functions in your class that are named identically to the
+functions in the parent class will be used instead of the native ones
+(this is known as "method overriding"). This allows you to substantially
+alter the CodeIgniter core.
+
+If you are extending the Controller core class, then be sure to extend
+your new class in your application controller's constructors.
+
+::
+
+	class Welcome extends MY_Controller {      function __construct()     {         parent::__construct();     }      function index()     {         $this->load->view('welcome_message');     } }
+
+Setting Your Own Prefix
+-----------------------
+
+To set your own sub-class prefix, open your
+application/config/config.php file and look for this item::
+
+	$config['subclass_prefix'] = 'MY_';
+
+Please note that all native CodeIgniter libraries are prefixed with CI\_
+so DO NOT use that as your prefix.
diff --git a/user_guide_src/source/general/creating_drivers.rst b/user_guide_src/source/general/creating_drivers.rst
new file mode 100644
index 000000000..0e22e4f14
--- /dev/null
+++ b/user_guide_src/source/general/creating_drivers.rst
@@ -0,0 +1,20 @@
+################
+Creating Drivers
+################
+
+Driver Directory and File Structure
+===================================
+
+Sample driver directory and file structure layout:
+
+-  /application/libraries/Driver_name
+
+   -  Driver_name.php
+   -  drivers
+
+      -  Driver_name_subclass_1.php
+      -  Driver_name_subclass_2.php
+      -  Driver_name_subclass_3.php
+
+**NOTE:** In order to maintain compatibility on case-sensitive file
+systems, the Driver_name directory must be ucfirst()
diff --git a/user_guide_src/source/general/creating_libraries.rst b/user_guide_src/source/general/creating_libraries.rst
new file mode 100644
index 000000000..d322f56eb
--- /dev/null
+++ b/user_guide_src/source/general/creating_libraries.rst
@@ -0,0 +1,187 @@
+##################
+Creating Libraries
+##################
+
+When we use the term "Libraries" we are normally referring to the
+classes that are located in the libraries directory and described in the
+Class Reference of this user guide. In this case, however, we will
+instead describe how you can create your own libraries within your
+application/libraries directory in order to maintain separation between
+your local resources and the global framework resources.
+
+As an added bonus, CodeIgniter permits your libraries to extend native
+classes if you simply need to add some functionality to an existing
+library. Or you can even replace native libraries just by placing
+identically named versions in your application/libraries folder.
+
+In summary:
+
+-  You can create entirely new libraries.
+-  You can extend native libraries.
+-  You can replace native libraries.
+
+The page below explains these three concepts in detail.
+
+.. note:: The Database classes can not be extended or replaced with your
+	own classes. All other classes are able to be replaced/extended.
+
+Storage
+=======
+
+Your library classes should be placed within your application/libraries
+folder, as this is where CodeIgniter will look for them when they are
+initialized.
+
+Naming Conventions
+==================
+
+-  File names must be capitalized. For example: Myclass.php
+-  Class declarations must be capitalized. For example: class Myclass
+-  Class names and file names must match.
+
+The Class File
+==============
+
+Classes should have this basic prototype (Note: We are using the name
+Someclass purely as an example)::
+
+	<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');  class Someclass {      public function some_function()     {     } } /* End of file Someclass.php */
+
+Using Your Class
+================
+
+From within any of your :doc:`Controller <controllers>` functions you
+can initialize your class using the standard::
+
+	$this->load->library('someclass');
+
+Where *someclass* is the file name, without the ".php" file extension.
+You can submit the file name capitalized or lower case. CodeIgniter
+doesn't care.
+
+Once loaded you can access your class using the lower case version::
+
+	$this->someclass->some_function();  // Object instances will always be lower case
+
+Passing Parameters When Initializing Your Class
+===============================================
+
+In the library loading function you can dynamically pass data as an
+array via the second parameter and it will be passed to your class
+constructor::
+
+	 $params = array('type' => 'large', 'color' => 'red');  $this->load->library('Someclass', $params);
+
+If you use this feature you must set up your class constructor to expect
+data::
+
+	<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');  class Someclass {      public function __construct($params)     {         // Do something with $params     } } ?>
+
+You can also pass parameters stored in a config file. Simply create a
+config file named identically to the class file name and store it in
+your application/config/ folder. Note that if you dynamically pass
+parameters as described above, the config file option will not be
+available.
+
+Utilizing CodeIgniter Resources within Your Library
+===================================================
+
+To access CodeIgniter's native resources within your library use the
+get_instance() function. This function returns the CodeIgniter super
+object.
+
+Normally from within your controller functions you will call any of the
+available CodeIgniter functions using the $this construct::
+
+	 $this->load->helper('url'); $this->load->library('session'); $this->config->item('base_url'); etc.
+
+$this, however, only works directly within your controllers, your
+models, or your views. If you would like to use CodeIgniter's classes
+from within your own custom classes you can do so as follows:
+
+First, assign the CodeIgniter object to a variable::
+
+	$CI =& get_instance();
+
+Once you've assigned the object to a variable, you'll use that variable
+*instead* of $this::
+
+	 $CI =& get_instance();  $CI->load->helper('url'); $CI->load->library('session'); $CI->config->item('base_url'); etc.
+
+.. note:: You'll notice that the above get_instance() function is being
+	passed by reference::
+	
+		$CI =& get_instance();
+
+	This is very important. Assigning by reference allows you to use the
+	original CodeIgniter object rather than creating a copy of it.
+
+Replacing Native Libraries with Your Versions
+=============================================
+
+Simply by naming your class files identically to a native library will
+cause CodeIgniter to use it instead of the native one. To use this
+feature you must name the file and the class declaration exactly the
+same as the native library. For example, to replace the native Email
+library you'll create a file named application/libraries/Email.php, and
+declare your class with::
+
+	 class CI_Email {  }
+
+Note that most native classes are prefixed with CI\_.
+
+To load your library you'll see the standard loading function::
+
+	$this->load->library('email');
+
+.. note:: At this time the Database classes can not be replaced with
+	your own versions.
+
+Extending Native Libraries
+==========================
+
+If all you need to do is add some functionality to an existing library -
+perhaps add a function or two - then it's overkill to replace the entire
+library with your version. In this case it's better to simply extend the
+class. Extending a class is nearly identical to replacing a class with a
+couple exceptions:
+
+-  The class declaration must extend the parent class.
+-  Your new class name and filename must be prefixed with MY\_ (this
+   item is configurable. See below.).
+
+For example, to extend the native Email class you'll create a file named
+application/libraries/MY_Email.php, and declare your class with::
+
+	 class MY_Email extends CI_Email {  }
+
+Note: If you need to use a constructor in your class make sure you
+extend the parent constructor::
+
+	 class MY_Email extends CI_Email {      public function __construct()     {         parent::__construct();     } }
+
+Loading Your Sub-class
+----------------------
+
+To load your sub-class you'll use the standard syntax normally used. DO
+NOT include your prefix. For example, to load the example above, which
+extends the Email class, you will use::
+
+	$this->load->library('email');
+
+Once loaded you will use the class variable as you normally would for
+the class you are extending. In the case of the email class all calls
+will use::
+
+	$this->email->some_function();
+
+Setting Your Own Prefix
+-----------------------
+
+To set your own sub-class prefix, open your
+application/config/config.php file and look for this item::
+
+	$config['subclass_prefix'] = 'MY_';
+
+Please note that all native CodeIgniter libraries are prefixed with CI\_
+so DO NOT use that as your prefix.
diff --git a/user_guide_src/source/general/credits.rst b/user_guide_src/source/general/credits.rst
new file mode 100644
index 000000000..2c7459894
--- /dev/null
+++ b/user_guide_src/source/general/credits.rst
@@ -0,0 +1,19 @@
+#######
+Credits
+#######
+
+CodeIgniter was originally developed by `Rick
+Ellis <http://www.ellislab.com/>`_ (CEO of `EllisLab,
+Inc. <http://ellislab.com/>`_). The framework was written for
+performance in the real world, with many of the class libraries,
+helpers, and sub-systems borrowed from the code-base of
+`ExpressionEngine <http://www.expressionengine.com/>`_.
+
+It is currently developed and maintained by the ExpressionEngine
+Development Team.
+Bleeding edge development is spearheaded by the handpicked contributors
+of the Reactor Team.
+
+A hat tip goes to Ruby on Rails for inspiring us to create a PHP
+framework, and for bringing frameworks into the general consciousness of
+the web community.
diff --git a/user_guide_src/source/general/drivers.rst b/user_guide_src/source/general/drivers.rst
new file mode 100644
index 000000000..8d0d84aaa
--- /dev/null
+++ b/user_guide_src/source/general/drivers.rst
@@ -0,0 +1,39 @@
+#########################
+Using CodeIgniter Drivers
+#########################
+
+Drivers are a special type of Library that has a parent class and any
+number of potential child classes. Child classes have access to the
+parent class, but not their siblings. Drivers provide an elegant syntax
+in your :doc:`controllers <controllers>` for libraries that benefit
+from or require being broken down into discrete classes.
+
+Drivers are found in the system/libraries folder, in their own folder
+which is identically named to the parent library class. Also inside that
+folder is a subfolder named drivers, which contains all of the possible
+child class files.
+
+To use a driver you will initialize it within a controller using the
+following initialization function::
+
+	$this->load->driver('class name'); 
+
+Where class name is the name of the driver class you want to invoke. For
+example, to load a driver named "Some Parent" you would do this::
+
+	$this->load->driver('some_parent');
+
+Methods of that class can then be invoked with::
+
+	$this->some_parent->some_method();
+
+The child classes, the drivers themselves, can then be called directly
+through the parent class, without initializing them::
+
+	$this->some_parent->child_one->some_method(); $this->some_parent->child_two->another_method();
+
+Creating Your Own Drivers
+=========================
+
+Please read the section of the user guide that discusses how to :doc:`create
+your own drivers <creating_drivers>`.
diff --git a/user_guide_src/source/general/environments.rst b/user_guide_src/source/general/environments.rst
new file mode 100644
index 000000000..40725feba
--- /dev/null
+++ b/user_guide_src/source/general/environments.rst
@@ -0,0 +1,46 @@
+##############################
+Handling Multiple Environments
+##############################
+
+Developers often desire different system behavior depending on whether
+an application is running in a development or production environment.
+For example, verbose error output is something that would be useful
+while developing an application, but it may also pose a security issue
+when "live".
+
+The ENVIRONMENT Constant
+========================
+
+By default, CodeIgniter comes with the environment constant set to
+'development'. At the top of index.php, you will see::
+
+	 define('ENVIRONMENT', 'development');
+
+In addition to affecting some basic framework behavior (see the next
+section), you may use this constant in your own development to
+differentiate between which environment you are running in.
+
+Effects On Default Framework Behavior
+=====================================
+
+There are some places in the CodeIgniter system where the ENVIRONMENT
+constant is used. This section describes how default framework behavior
+is affected.
+
+Error Reporting
+---------------
+
+Setting the ENVIRONMENT constant to a value of 'development' will cause
+all PHP errors to be rendered to the browser when they occur.
+Conversely, setting the constant to 'production' will disable all error
+output. Disabling error reporting in production is a :doc:`good security
+practice <security>`.
+
+Configuration Files
+-------------------
+
+Optionally, you can have CodeIgniter load environment-specific
+configuration files. This may be useful for managing things like
+differing API keys across multiple environments. This is described in
+more detail in the environment section of the `Config
+Class <../libraries/config.html#environments>`_ documentation.
diff --git a/user_guide_src/source/general/errors.rst b/user_guide_src/source/general/errors.rst
new file mode 100644
index 000000000..0764e9db8
--- /dev/null
+++ b/user_guide_src/source/general/errors.rst
@@ -0,0 +1,75 @@
+##############
+Error Handling
+##############
+
+CodeIgniter lets you build error reporting into your applications using
+the functions described below. In addition, it has an error logging
+class that permits error and debugging messages to be saved as text
+files.
+
+.. note:: By default, CodeIgniter displays all PHP errors. You might
+	wish to change this behavior once your development is complete. You'll
+	find the error_reporting() function located at the top of your main
+	index.php file. Disabling error reporting will NOT prevent log files
+	from being written if there are errors.
+
+Unlike most systems in CodeIgniter, the error functions are simple
+procedural interfaces that are available globally throughout the
+application. This approach permits error messages to get triggered
+without having to worry about class/function scoping.
+
+The following functions let you generate errors:
+
+show_error('message' [, int $status_code= 500 ] )
+===================================================
+
+This function will display the error message supplied to it using the
+following error template:
+
+application/errors/error_general.php
+
+The optional parameter $status_code determines what HTTP status code
+should be sent with the error.
+
+show_404('page' [, 'log_error'])
+==================================
+
+This function will display the 404 error message supplied to it using
+the following error template:
+
+application/errors/error_404.php
+
+The function expects the string passed to it to be the file path to the
+page that isn't found. Note that CodeIgniter automatically shows 404
+messages if controllers are not found.
+
+CodeIgniter automatically logs any show_404() calls. Setting the
+optional second parameter to FALSE will skip logging.
+
+log_message('level', 'message')
+================================
+
+This function lets you write messages to your log files. You must supply
+one of three "levels" in the first parameter, indicating what type of
+message it is (debug, error, info), with the message itself in the
+second parameter. Example::
+
+	 if ($some_var == "") {     log_message('error', 'Some variable did not contain a value.'); } else {     log_message('debug', 'Some variable was correctly set'); }  log_message('info', 'The purpose of some variable is to provide some value.');
+
+There are three message types:
+
+#. Error Messages. These are actual errors, such as PHP errors or user
+   errors.
+#. Debug Messages. These are messages that assist in debugging. For
+   example, if a class has been initialized, you could log this as
+   debugging info.
+#. Informational Messages. These are the lowest priority messages,
+   simply giving information regarding some process. CodeIgniter doesn't
+   natively generate any info messages but you may want to in your
+   application.
+
+.. note:: In order for the log file to actually be written, the "logs"
+	folder must be writable. In addition, you must set the "threshold" for
+	logging in application/config/config.php. You might, for example, only
+	want error messages to be logged, and not the other two types. If you
+	set it to zero logging will be disabled.
diff --git a/user_guide_src/source/general/helpers.rst b/user_guide_src/source/general/helpers.rst
new file mode 100644
index 000000000..2b113c1f4
--- /dev/null
+++ b/user_guide_src/source/general/helpers.rst
@@ -0,0 +1,123 @@
+################
+Helper Functions
+################
+
+Helpers, as the name suggests, help you with tasks. Each helper file is
+simply a collection of functions in a particular category. There are URL
+Helpers, that assist in creating links, there are Form Helpers that help
+you create form elements, Text Helpers perform various text formatting
+routines, Cookie Helpers set and read cookies, File Helpers help you
+deal with files, etc.
+
+Unlike most other systems in CodeIgniter, Helpers are not written in an
+Object Oriented format. They are simple, procedural functions. Each
+helper function performs one specific task, with no dependence on other
+functions.
+
+CodeIgniter does not load Helper Files by default, so the first step in
+using a Helper is to load it. Once loaded, it becomes globally available
+in your :doc:`controller <../general/controllers>` and
+:doc:`views <../general/views>`.
+
+Helpers are typically stored in your system/helpers, or
+application/helpers directory. CodeIgniter will look first in your
+application/helpers directory. If the directory does not exist or the
+specified helper is not located there CI will instead look in your
+global system/helpers folder.
+
+Loading a Helper
+================
+
+Loading a helper file is quite simple using the following function::
+
+	$this->load->helper('name');
+
+Where name is the file name of the helper, without the .php file
+extension or the "helper" part.
+
+For example, to load the URL Helper file, which is named
+url_helper.php, you would do this::
+
+	$this->load->helper('url');
+
+A helper can be loaded anywhere within your controller functions (or
+even within your View files, although that's not a good practice), as
+long as you load it before you use it. You can load your helpers in your
+controller constructor so that they become available automatically in
+any function, or you can load a helper in a specific function that needs
+it.
+
+Note: The Helper loading function above does not return a value, so
+don't try to assign it to a variable. Just use it as shown.
+
+Loading Multiple Helpers
+========================
+
+If you need to load more than one helper you can specify them in an
+array, like this::
+
+	$this->load->helper( array('helper1', 'helper2', 'helper3') );
+
+Auto-loading Helpers
+====================
+
+If you find that you need a particular helper globally throughout your
+application, you can tell CodeIgniter to auto-load it during system
+initialization. This is done by opening the
+application/config/autoload.php file and adding the helper to the
+autoload array.
+
+Using a Helper
+==============
+
+Once you've loaded the Helper File containing the function you intend to
+use, you'll call it the way you would a standard PHP function.
+
+For example, to create a link using the anchor() function in one of your
+view files you would do this::
+
+	<?php echo anchor('blog/comments', 'Click Here');?>
+
+Where "Click Here" is the name of the link, and "blog/comments" is the
+URI to the controller/function you wish to link to.
+
+"Extending" Helpers
+===================
+
+To "extend" Helpers, create a file in your application/helpers/ folder
+with an identical name to the existing Helper, but prefixed with MY\_
+(this item is configurable. See below.).
+
+If all you need to do is add some functionality to an existing helper -
+perhaps add a function or two, or change how a particular helper
+function operates - then it's overkill to replace the entire helper with
+your version. In this case it's better to simply "extend" the Helper.
+The term "extend" is used loosely since Helper functions are procedural
+and discrete and cannot be extended in the traditional programmatic
+sense. Under the hood, this gives you the ability to add to the
+functions a Helper provides, or to modify how the native Helper
+functions operate.
+
+For example, to extend the native Array Helper you'll create a file
+named application/helpers/MY_array_helper.php, and add or override
+functions::
+
+	 // any_in_array() is not in the Array Helper, so it defines a new function function any_in_array($needle, $haystack) {     $needle = (is_array($needle)) ? $needle : array($needle);          foreach ($needle as $item)     {         if (in_array($item, $haystack))         {             return TRUE;         }         }          return FALSE; }  // random_element() is included in Array Helper, so it overrides the native function function random_element($array) {     shuffle($array);     return array_pop($array); }
+
+Setting Your Own Prefix
+-----------------------
+
+The filename prefix for "extending" Helpers is the same used to extend
+libraries and Core classes. To set your own prefix, open your
+application/config/config.php file and look for this item::
+
+	$config['subclass_prefix'] = 'MY_';
+
+Please note that all native CodeIgniter libraries are prefixed with CI\_
+so DO NOT use that as your prefix.
+
+Now What?
+=========
+
+In the Table of Contents you'll find a list of all the available Helper
+Files. Browse each one to see what they do.
diff --git a/user_guide_src/source/general/hooks.rst b/user_guide_src/source/general/hooks.rst
new file mode 100644
index 000000000..ab42d28a1
--- /dev/null
+++ b/user_guide_src/source/general/hooks.rst
@@ -0,0 +1,98 @@
+####################################
+Hooks - Extending the Framework Core
+####################################
+
+CodeIgniter's Hooks feature provides a means to tap into and modify the
+inner workings of the framework without hacking the core files. When
+CodeIgniter runs it follows a specific execution process, diagramed in
+the :doc:`Application Flow <../overview/appflow>` page. There may be
+instances, however, where you'd like to cause some action to take place
+at a particular stage in the execution process. For example, you might
+want to run a script right before your controllers get loaded, or right
+after, or you might want to trigger one of your own scripts in some
+other location.
+
+Enabling Hooks
+==============
+
+The hooks feature can be globally enabled/disabled by setting the
+following item in the application/config/config.php file::
+
+	$config['enable_hooks'] = TRUE;
+
+Defining a Hook
+===============
+
+Hooks are defined in application/config/hooks.php file. Each hook is
+specified as an array with this prototype::
+
+	 $hook['pre_controller'] = array(                                 'class'    => 'MyClass',                                 'function' => 'Myfunction',                                 'filename' => 'Myclass.php',                                 'filepath' => 'hooks',                                 'params'   => array('beer', 'wine', 'snacks')                                 );
+
+**Notes:**
+The array index correlates to the name of the particular hook point you
+want to use. In the above example the hook point is pre_controller. A
+list of hook points is found below. The following items should be
+defined in your associative hook array:
+
+-  **class** The name of the class you wish to invoke. If you prefer to
+   use a procedural function instead of a class, leave this item blank.
+-  **function** The function name you wish to call.
+-  **filename** The file name containing your class/function.
+-  **filepath** The name of the directory containing your script. Note:
+   Your script must be located in a directory INSIDE your application
+   folder, so the file path is relative to that folder. For example, if
+   your script is located in application/hooks, you will simply use
+   hooks as your filepath. If your script is located in
+   application/hooks/utilities you will use hooks/utilities as your
+   filepath. No trailing slash.
+-  **params** Any parameters you wish to pass to your script. This item
+   is optional.
+
+Multiple Calls to the Same Hook
+===============================
+
+If want to use the same hook point with more then one script, simply
+make your array declaration multi-dimensional, like this::
+
+	 $hook['pre_controller'][] = array(                                 'class'    => 'MyClass',                                 'function' => 'Myfunction',                                 'filename' => 'Myclass.php',                                 'filepath' => 'hooks',                                 'params'   => array('beer', 'wine', 'snacks')                                 );  $hook['pre_controller'][] = array(                                 'class'    => 'MyOtherClass',                                 'function' => 'MyOtherfunction',                                 'filename' => 'Myotherclass.php',                                 'filepath' => 'hooks',                                 'params'   => array('red', 'yellow', 'blue')                                 );
+
+Notice the brackets after each array index::
+
+	$hook['pre_controller'][]
+
+This permits you to have the same hook point with multiple scripts. The
+order you define your array will be the execution order.
+
+Hook Points
+===========
+
+The following is a list of available hook points.
+
+-  **pre_system**
+   Called very early during system execution. Only the benchmark and
+   hooks class have been loaded at this point. No routing or other
+   processes have happened.
+-  **pre_controller**
+   Called immediately prior to any of your controllers being called.
+   All base classes, routing, and security checks have been done.
+-  **post_controller_constructor**
+   Called immediately after your controller is instantiated, but prior
+   to any method calls happening.
+-  **post_controller**
+   Called immediately after your controller is fully executed.
+-  **display_override**
+   Overrides the _display() function, used to send the finalized page
+   to the web browser at the end of system execution. This permits you
+   to use your own display methodology. Note that you will need to
+   reference the CI superobject with $this->CI =& get_instance() and
+   then the finalized data will be available by calling
+   $this->CI->output->get_output()
+-  **cache_override**
+   Enables you to call your own function instead of the
+   _display_cache() function in the output class. This permits you to
+   use your own cache display mechanism.
+-  **post_system**
+   Called after the final rendered page is sent to the browser, at the
+   end of system execution after the finalized data is sent to the
+   browser.
+
diff --git a/user_guide_src/source/general/index.rst b/user_guide_src/source/general/index.rst
new file mode 100644
index 000000000..1ece12bef
--- /dev/null
+++ b/user_guide_src/source/general/index.rst
@@ -0,0 +1,6 @@
+.. toctree::
+	:glob:
+	:hidden:
+	:titlesonly:
+	
+	*
\ No newline at end of file
diff --git a/user_guide_src/source/general/libraries.rst b/user_guide_src/source/general/libraries.rst
new file mode 100644
index 000000000..954a5b8f8
--- /dev/null
+++ b/user_guide_src/source/general/libraries.rst
@@ -0,0 +1,31 @@
+###########################
+Using CodeIgniter Libraries
+###########################
+
+All of the available libraries are located in your system/libraries
+folder. In most cases, to use one of these classes involves initializing
+it within a :doc:`controller <controllers>` using the following
+initialization function::
+
+	$this->load->library('class name'); 
+
+Where class name is the name of the class you want to invoke. For
+example, to load the form validation class you would do this::
+
+	$this->load->library('form_validation'); 
+
+Once initialized you can use it as indicated in the user guide page
+corresponding to that class.
+
+Additionally, multiple libraries can be loaded at the same time by
+passing an array of libraries to the load function.
+
+::
+
+	$this->load->library(array('email', 'table'));
+
+Creating Your Own Libraries
+===========================
+
+Please read the section of the user guide that discusses how to :doc:`create
+your own libraries <creating_libraries>`
diff --git a/user_guide_src/source/general/managing_apps.rst b/user_guide_src/source/general/managing_apps.rst
new file mode 100644
index 000000000..edc94d284
--- /dev/null
+++ b/user_guide_src/source/general/managing_apps.rst
@@ -0,0 +1,52 @@
+##########################
+Managing your Applications
+##########################
+
+By default it is assumed that you only intend to use CodeIgniter to
+manage one application, which you will build in your application/
+directory. It is possible, however, to have multiple sets of
+applications that share a single CodeIgniter installation, or even to
+rename or relocate your application folder.
+
+Renaming the Application Folder
+===============================
+
+If you would like to rename your application folder you may do so as
+long as you open your main index.php file and set its name using the
+$application_folder variable::
+
+	$application_folder = "application";
+
+Relocating your Application Folder
+==================================
+
+It is possible to move your application folder to a different location
+on your server than your system folder. To do so open your main
+index.php and set a *full server path* in the $application_folder
+variable.
+
+::
+
+	$application_folder = "/Path/to/your/application";
+
+Running Multiple Applications with one CodeIgniter Installation
+===============================================================
+
+If you would like to share a common CodeIgniter installation to manage
+several different applications simply put all of the directories located
+inside your application folder into their own sub-folder.
+
+For example, let's say you want to create two applications, "foo" and
+"bar". You could structure your application folders like this::
+
+	applications/foo/ applications/foo/config/ applications/foo/controllers/ applications/foo/errors/ applications/foo/libraries/ applications/foo/models/ applications/foo/views/ applications/bar/ applications/bar/config/ applications/bar/controllers/ applications/bar/errors/ applications/bar/libraries/ applications/bar/models/ applications/bar/views/
+
+To select a particular application for use requires that you open your
+main index.php file and set the $application_folder variable. For
+example, to select the "foo" application for use you would do this::
+
+	$application_folder = "applications/foo";
+
+.. note:: Each of your applications will need its own index.php file
+	which calls the desired application. The index.php file can be named
+	anything you want.
diff --git a/user_guide_src/source/general/models.rst b/user_guide_src/source/general/models.rst
new file mode 100644
index 000000000..e26207cc2
--- /dev/null
+++ b/user_guide_src/source/general/models.rst
@@ -0,0 +1,117 @@
+######
+Models
+######
+
+Models are **optionally** available for those who want to use a more
+traditional MVC approach.
+
+-  `What is a Model? <#what>`_
+-  `Anatomy of a Model <#anatomy>`_
+-  `Loading a Model <#loading>`_
+-  `Auto-Loading a Model <#auto_load_model>`_
+-  `Connecting to your Database <#conn>`_
+
+What is a Model?
+================
+
+Models are PHP classes that are designed to work with information in
+your database. For example, let's say you use CodeIgniter to manage a
+blog. You might have a model class that contains functions to insert,
+update, and retrieve your blog data. Here is an example of what such a
+model class might look like::
+
+	 class Blogmodel extends CI_Model {      var $title   = '';     var $content = '';     var $date    = '';      function __construct()     {         // Call the Model constructor         parent::__construct();     }          function get_last_ten_entries()     {         $query = $this->db->get('entries', 10);         return $query->result();     }      function insert_entry()     {         $this->title   = $_POST['title']; // please read the below note         $this->content = $_POST['content'];         $this->date    = time();          $this->db->insert('entries', $this);     }      function update_entry()     {         $this->title   = $_POST['title'];         $this->content = $_POST['content'];         $this->date    = time();          $this->db->update('entries', $this, array('id' => $_POST['id']));     }  }
+
+Note: The functions in the above example use the :doc:`Active
+Record <../database/active_record>` database functions.
+
+.. note:: For the sake of simplicity in this example we're using $_POST
+	directly. This is generally bad practice, and a more common approach
+	would be to use the :doc:`Input Class <../libraries/input>`
+	$this->input->post('title')
+
+Anatomy of a Model
+==================
+
+Model classes are stored in your application/models/ folder. They can be
+nested within sub-folders if you want this type of organization.
+
+The basic prototype for a model class is this::
+
+	 class Model_name extends CI_Model {      function __construct()     {         parent::__construct();     } }
+
+Where Model_name is the name of your class. Class names **must** have
+the first letter capitalized with the rest of the name lowercase. Make
+sure your class extends the base Model class.
+
+The file name will be a lower case version of your class name. For
+example, if your class is this::
+
+	 class User_model extends CI_Model {      function __construct()     {         parent::__construct();     } }
+
+Your file will be this::
+
+	application/models/user_model.php
+
+Loading a Model
+===============
+
+Your models will typically be loaded and called from within your
+:doc:`controller <controllers>` functions. To load a model you will use
+the following function::
+
+	$this->load->model('Model_name');
+
+If your model is located in a sub-folder, include the relative path from
+your models folder. For example, if you have a model located at
+application/models/blog/queries.php you'll load it using::
+
+	$this->load->model('blog/queries');
+
+Once loaded, you will access your model functions using an object with
+the same name as your class::
+
+	 $this->load->model('Model_name');  $this->Model_name->function();
+
+If you would like your model assigned to a different object name you can
+specify it via the second parameter of the loading function::
+
+	 $this->load->model('Model_name', 'fubar');  $this->fubar->function();
+
+Here is an example of a controller, that loads a model, then serves a
+view::
+
+	 class Blog_controller extends CI_Controller {      function blog()     {         $this->load->model('Blog');          $data['query'] = $this->Blog->get_last_ten_entries();         $this->load->view('blog', $data);     } }
+
+Auto-loading Models
+===================
+
+If you find that you need a particular model globally throughout your
+application, you can tell CodeIgniter to auto-load it during system
+initialization. This is done by opening the
+application/config/autoload.php file and adding the model to the
+autoload array.
+
+Connecting to your Database
+===========================
+
+When a model is loaded it does **NOT** connect automatically to your
+database. The following options for connecting are available to you:
+
+-  You can connect using the standard database methods :doc:`described
+   here <../database/connecting>`, either from within your
+   Controller class or your Model class.
+-  You can tell the model loading function to auto-connect by passing
+   TRUE (boolean) via the third parameter, and connectivity settings, as
+   defined in your database config file will be used:
+   ::
+
+	$this->load->model('Model_name', '', TRUE);
+
+-  You can manually pass database connectivity settings via the third
+   parameter:
+   ::
+
+	$config['hostname'] = "localhost";         $config['username'] = "myusername";         $config['password'] = "mypassword";         $config['database'] = "mydatabase";         $config['dbdriver'] = "mysql";         $config['dbprefix'] = "";         $config['pconnect'] = FALSE;         $config['db_debug'] = TRUE;                  $this->load->model('Model_name', '', $config);
+
+
diff --git a/user_guide_src/source/general/profiling.rst b/user_guide_src/source/general/profiling.rst
new file mode 100644
index 000000000..60ef585ef
--- /dev/null
+++ b/user_guide_src/source/general/profiling.rst
@@ -0,0 +1,98 @@
+##########################
+Profiling Your Application
+##########################
+
+The Profiler Class will display benchmark results, queries you have run,
+and $_POST data at the bottom of your pages. This information can be
+useful during development in order to help with debugging and
+optimization.
+
+Initializing the Class
+======================
+
+.. important:: This class does NOT need to be initialized. It is loaded
+	automatically by the :doc:`Output Class <../libraries/output>` if
+	profiling is enabled as shown below.
+
+Enabling the Profiler
+=====================
+
+To enable the profiler place the following function anywhere within your
+:doc:`Controller <controllers>` functions::
+
+	$this->output->enable_profiler(TRUE);
+
+When enabled a report will be generated and inserted at the bottom of
+your pages.
+
+To disable the profiler you will use::
+
+	$this->output->enable_profiler(FALSE);
+
+Setting Benchmark Points
+========================
+
+In order for the Profiler to compile and display your benchmark data you
+must name your mark points using specific syntax.
+
+Please read the information on setting Benchmark points in :doc:`Benchmark
+Class <../libraries/benchmark>` page.
+
+Enabling and Disabling Profiler Sections
+========================================
+
+Each section of Profiler data can be enabled or disabled by setting a
+corresponding config variable to TRUE or FALSE. This can be done one of
+two ways. First, you can set application wide defaults with the
+application/config/profiler.php config file.
+
+::
+
+	$config['config']          = FALSE;     $config['queries']         = FALSE;
+
+In your controllers, you can override the defaults and config file
+values by calling the set_profiler_sections() method of the :doc:`Output
+class <../libraries/output>`::
+
+	$sections = array(         'config'  => TRUE,         'queries' => TRUE         );          $this->output->set_profiler_sections($sections);
+
+Available sections and the array key used to access them are described
+in the table below.
+
+Key
+Description
+Default
+**benchmarks**
+Elapsed time of Benchmark points and total execution time
+TRUE
+**config**
+CodeIgniter Config variables
+TRUE
+**controller_info**
+The Controller class and method requested
+TRUE
+**get**
+Any GET data passed in the request
+TRUE
+**http_headers**
+The HTTP headers for the current request
+TRUE
+**memory_usage**
+Amount of memory consumed by the current request, in bytes
+TRUE
+**post**
+Any POST data passed in the request
+TRUE
+**queries**
+Listing of all database queries executed, including execution time
+TRUE
+**uri_string**
+The URI of the current request
+TRUE
+**session_data**
+Data stored in the current session
+TRUE
+**query_toggle_count**
+The number of queries after which the query block will default to
+hidden.
+25
diff --git a/user_guide_src/source/general/quick_reference.rst b/user_guide_src/source/general/quick_reference.rst
new file mode 100644
index 000000000..b9108a528
--- /dev/null
+++ b/user_guide_src/source/general/quick_reference.rst
@@ -0,0 +1,11 @@
+#####################
+Quick Reference Chart
+#####################
+
+For a PDF version of this chart, `click
+here <http://codeigniter.com/download_files/ci_quick_ref.pdf>`_.
+
+.. figure:: ../images/ci_quick_ref.png
+   :align: center
+   :alt: 
+
diff --git a/user_guide_src/source/general/requirements.rst b/user_guide_src/source/general/requirements.rst
new file mode 100644
index 000000000..38623557d
--- /dev/null
+++ b/user_guide_src/source/general/requirements.rst
@@ -0,0 +1,8 @@
+###################
+Server Requirements
+###################
+
+-  `PHP <http://www.php.net/>`_ version 5.1.6 or newer.
+-  A Database is required for most web application programming. Current
+   supported databases are MySQL (4.1+), MySQLi, MS SQL, Postgres, Oracle,
+   SQLite, ODBC and CUBRID.
\ No newline at end of file
diff --git a/user_guide_src/source/general/reserved_names.rst b/user_guide_src/source/general/reserved_names.rst
new file mode 100644
index 000000000..5ce7fc2ff
--- /dev/null
+++ b/user_guide_src/source/general/reserved_names.rst
@@ -0,0 +1,66 @@
+##############
+Reserved Names
+##############
+
+In order to help out, CodeIgniter uses a series of functions and names
+in its operation. Because of this, some names cannot be used by a
+developer. Following is a list of reserved names that cannot be used.
+
+Controller names
+----------------
+
+Since your controller classes will extend the main application
+controller you must be careful not to name your functions identically to
+the ones used by that class, otherwise your local functions will
+override them. The following is a list of reserved names. Do not name
+your controller any of these:
+
+-  Controller
+-  CI_Base
+-  _ci_initialize
+-  Default
+-  index
+
+Functions
+---------
+
+-  is_really_writable()
+-  load_class()
+-  get_config()
+-  config_item()
+-  show_error()
+-  show_404()
+-  log_message()
+-  _exception_handler()
+-  get_instance()
+
+Variables
+---------
+
+-  $config
+-  $mimes
+-  $lang
+
+Constants
+---------
+
+-  ENVIRONMENT
+-  EXT
+-  FCPATH
+-  SELF
+-  BASEPATH
+-  APPPATH
+-  CI_VERSION
+-  FILE_READ_MODE
+-  FILE_WRITE_MODE
+-  DIR_READ_MODE
+-  DIR_WRITE_MODE
+-  FOPEN_READ
+-  FOPEN_READ_WRITE
+-  FOPEN_WRITE_CREATE_DESTRUCTIVE
+-  FOPEN_READ_WRITE_CREATE_DESTRUCTIVE
+-  FOPEN_WRITE_CREATE
+-  FOPEN_READ_WRITE_CREATE
+-  FOPEN_WRITE_CREATE_STRICT
+-  FOPEN_READ_WRITE_CREATE_STRICT
+
diff --git a/user_guide_src/source/general/routing.rst b/user_guide_src/source/general/routing.rst
new file mode 100644
index 000000000..45950fc11
--- /dev/null
+++ b/user_guide_src/source/general/routing.rst
@@ -0,0 +1,133 @@
+###########
+URI Routing
+###########
+
+Typically there is a one-to-one relationship between a URL string and
+its corresponding controller class/method. The segments in a URI
+normally follow this pattern::
+
+	example.com/class/function/id/
+
+In some instances, however, you may want to remap this relationship so
+that a different class/function can be called instead of the one
+corresponding to the URL.
+
+For example, lets say you want your URLs to have this prototype:
+
+example.com/product/1/
+example.com/product/2/
+example.com/product/3/
+example.com/product/4/
+
+Normally the second segment of the URL is reserved for the function
+name, but in the example above it instead has a product ID. To overcome
+this, CodeIgniter allows you to remap the URI handler.
+
+Setting your own routing rules
+==============================
+
+Routing rules are defined in your application/config/routes.php file. In
+it you'll see an array called $route that permits you to specify your
+own routing criteria. Routes can either be specified using wildcards or
+Regular Expressions
+
+Wildcards
+=========
+
+A typical wildcard route might look something like this::
+
+	$route['product/:num'] = "catalog/product_lookup";
+
+In a route, the array key contains the URI to be matched, while the
+array value contains the destination it should be re-routed to. In the
+above example, if the literal word "product" is found in the first
+segment of the URL, and a number is found in the second segment, the
+"catalog" class and the "product_lookup" method are instead used.
+
+You can match literal values or you can use two wildcard types:
+
+**(:num)** will match a segment containing only numbers.
+ **(:any)** will match a segment containing any character.
+
+.. note:: Routes will run in the order they are defined. Higher routes
+	will always take precedence over lower ones.
+
+Examples
+========
+
+Here are a few routing examples::
+
+	$route['journals'] = "blogs";
+
+A URL containing the word "journals" in the first segment will be
+remapped to the "blogs" class.
+
+::
+
+	$route['blog/joe'] = "blogs/users/34";
+
+A URL containing the segments blog/joe will be remapped to the "blogs"
+class and the "users" method. The ID will be set to "34".
+
+::
+
+	$route['product/(:any)'] = "catalog/product_lookup";
+
+A URL with "product" as the first segment, and anything in the second
+will be remapped to the "catalog" class and the "product_lookup"
+method.
+
+::
+
+	$route['product/(:num)'] = "catalog/product_lookup_by_id/$1";
+
+A URL with "product" as the first segment, and a number in the second
+will be remapped to the "catalog" class and the
+"product_lookup_by_id" method passing in the match as a variable to
+the function.
+
+.. important:: Do not use leading/trailing slashes.
+
+Regular Expressions
+===================
+
+If you prefer you can use regular expressions to define your routing
+rules. Any valid regular expression is allowed, as are back-references.
+
+.. note:: If you use back-references you must use the dollar syntax
+	rather than the double backslash syntax.
+
+A typical RegEx route might look something like this::
+
+	$route['products/([a-z]+)/(\d+)'] = "$1/id_$2";
+
+In the above example, a URI similar to products/shirts/123 would instead
+call the shirts controller class and the id_123 function.
+
+You can also mix and match wildcards with regular expressions.
+
+Reserved Routes
+===============
+
+There are two reserved routes::
+
+	$route['default_controller'] = 'welcome';
+
+This route indicates which controller class should be loaded if the URI
+contains no data, which will be the case when people load your root URL.
+In the above example, the "welcome" class would be loaded. You are
+encouraged to always have a default route otherwise a 404 page will
+appear by default.
+
+::
+
+	$route['404_override'] = '';
+
+This route indicates which controller class should be loaded if the
+requested controller is not found. It will override the default 404
+error page. It won't affect to the show_404() function, which will
+continue loading the default error_404.php file at
+application/errors/error_404.php.
+
+.. important:: The reserved routes must come before any wildcard or
+	regular expression routes.
diff --git a/user_guide_src/source/general/security.rst b/user_guide_src/source/general/security.rst
new file mode 100644
index 000000000..d9d5b728b
--- /dev/null
+++ b/user_guide_src/source/general/security.rst
@@ -0,0 +1,90 @@
+########
+Security
+########
+
+This page describes some "best practices" regarding web security, and
+details CodeIgniter's internal security features.
+
+URI Security
+============
+
+CodeIgniter is fairly restrictive regarding which characters it allows
+in your URI strings in order to help minimize the possibility that
+malicious data can be passed to your application. URIs may only contain
+the following:
+
+-  Alpha-numeric text
+-  Tilde: ~
+-  Period: .
+-  Colon: :
+-  Underscore: \_
+-  Dash: -
+
+Register_globals
+=================
+
+During system initialization all global variables are unset, except
+those found in the $_GET, $_POST, and $_COOKIE arrays. The unsetting
+routine is effectively the same as register_globals = off.
+
+error_reporting
+================
+
+In production environments, it is typically desirable to disable PHP's
+error reporting by setting the internal error_reporting flag to a value
+of 0. This disables native PHP errors from being rendered as output,
+which may potentially contain sensitive information.
+
+Setting CodeIgniter's ENVIRONMENT constant in index.php to a value of
+'production' will turn off these errors. In development mode, it is
+recommended that a value of 'development' is used. More information
+about differentiating between environments can be found on the :doc:`Handling
+Environments <environments>` page.
+
+magic_quotes_runtime
+======================
+
+The magic_quotes_runtime directive is turned off during system
+initialization so that you don't have to remove slashes when retrieving
+data from your database.
+
+**************
+Best Practices
+**************
+
+Before accepting any data into your application, whether it be POST data
+from a form submission, COOKIE data, URI data, XML-RPC data, or even
+data from the SERVER array, you are encouraged to practice this three
+step approach:
+
+#. Filter the data as if it were tainted.
+#. Validate the data to ensure it conforms to the correct type, length,
+   size, etc. (sometimes this step can replace step one)
+#. Escape the data before submitting it into your database.
+
+CodeIgniter provides the following functions to assist in this process:
+
+XSS Filtering
+=============
+
+CodeIgniter comes with a Cross Site Scripting filter. This filter
+looks for commonly used techniques to embed malicious Javascript into
+your data, or other types of code that attempt to hijack cookies or
+do other malicious things. The XSS Filter is described
+:doc:`here <../libraries/security>`.
+
+Validate the data
+=================
+
+CodeIgniter has a :doc:`Form Validation
+Class <../libraries/form_validation>` that assists you in
+validating, filtering, and prepping your data.
+
+Escape all data before database insertion
+=========================================
+
+Never insert information into your database without escaping it.
+Please see the section that discusses
+:doc:`queries <../database/queries>` for more information.
+
+
diff --git a/user_guide_src/source/general/styleguide.rst b/user_guide_src/source/general/styleguide.rst
new file mode 100644
index 000000000..fe7def12c
--- /dev/null
+++ b/user_guide_src/source/general/styleguide.rst
@@ -0,0 +1,403 @@
+########################
+General Style and Syntax
+########################
+
+The following page describes the use of coding rules adhered to when
+developing CodeIgniter.
+
+.. contents:: Table of Contents
+
+File Format
+===========
+
+Files should be saved with Unicode (UTF-8) encoding. The BOM should
+*not* be used. Unlike UTF-16 and UTF-32, there's no byte order to
+indicate in a UTF-8 encoded file, and the BOM can have a negative side
+effect in PHP of sending output, preventing the application from being
+able to set its own headers. Unix line endings should be used (LF).
+
+Here is how to apply these settings in some of the more common text
+editors. Instructions for your text editor may vary; check your text
+editor's documentation.
+
+TextMate
+''''''''
+
+#. Open the Application Preferences
+#. Click Advanced, and then the "Saving" tab
+#. In "File Encoding", select "UTF-8 (recommended)"
+#. In "Line Endings", select "LF (recommended)"
+#. *Optional:* Check "Use for existing files as well" if you wish to
+   modify the line endings of files you open to your new preference.
+
+BBEdit
+''''''
+
+#. Open the Application Preferences
+#. Select "Text Encodings" on the left.
+#. In "Default text encoding for new documents", select "Unicode (UTF-8,
+   no BOM)"
+#. *Optional:* In "If file's encoding can't be guessed, use", select
+   "Unicode (UTF-8, no BOM)"
+#. Select "Text Files" on the left.
+#. In "Default line breaks", select "Mac OS X and Unix (LF)"
+
+PHP Closing Tag
+===============
+
+The PHP closing tag on a PHP document **?>** is optional to the PHP
+parser. However, if used, any whitespace following the closing tag,
+whether introduced by the developer, user, or an FTP application, can
+cause unwanted output, PHP errors, or if the latter are suppressed,
+blank pages. For this reason, all PHP files should **OMIT** the closing
+PHP tag, and instead use a comment block to mark the end of file and
+it's location relative to the application root. This allows you to still
+identify a file as being complete and not truncated.
+
+::
+
+	INCORRECT: <?php  echo "Here's my code!";  ?>  CORRECT: <?php  echo "Here's my code!";  /* End of file myfile.php */ /* Location: ./system/modules/mymodule/myfile.php */
+
+Class and Method Naming
+=======================
+
+Class names should always start with an uppercase letter. Multiple words
+should be separated with an underscore, and not CamelCased. All other
+class methods should be entirely lowercased and named to clearly
+indicate their function, preferably including a verb. Try to avoid
+overly long and verbose names.
+
+::
+
+	INCORRECT: class superclass class SuperClass  CORRECT: class Super_class
+
+::
+
+	class Super_class {      function __construct()     {      } }
+
+Examples of improper and proper method naming::
+
+	INCORRECT: function fileproperties()       // not descriptive and needs underscore separator function fileProperties()       // not descriptive and uses CamelCase function getfileproperties()        // Better!  But still missing underscore separator function getFileProperties()        // uses CamelCase function get_the_file_properties_from_the_file()    // wordy  CORRECT: function get_file_properties()  // descriptive, underscore separator, and all lowercase letters
+
+Variable Names
+==============
+
+The guidelines for variable naming is very similar to that used for
+class methods. Namely, variables should contain only lowercase letters,
+use underscore separators, and be reasonably named to indicate their
+purpose and contents. Very short, non-word variables should only be used
+as iterators in for() loops.
+
+::
+
+	INCORRECT: $j = 'foo';       // single letter variables should only be used in for() loops $Str            // contains uppercase letters $bufferedText       // uses CamelCasing, and could be shortened without losing semantic meaning $groupid        // multiple words, needs underscore separator $name_of_last_city_used // too long  CORRECT: for ($j = 0; $j < 10; $j++) $str $buffer $group_id $last_city
+
+Commenting
+==========
+
+In general, code should be commented prolifically. It not only helps
+describe the flow and intent of the code for less experienced
+programmers, but can prove invaluable when returning to your own code
+months down the line. There is not a required format for comments, but
+the following are recommended.
+
+`DocBlock <http://manual.phpdoc.org/HTMLSmartyConverter/HandS/phpDocumentor/tutorial_phpDocumentor.howto.pkg.html#basics.docblock>`_
+style comments preceding class and method declarations so they can be
+picked up by IDEs::
+
+	/**  * Super Class  *  * @package Package Name  * @subpackage  Subpackage  * @category    Category  * @author  Author Name  * @link    http://example.com  */ class Super_class {
+
+::
+
+	/**  * Encodes string for use in XML  *  * @access  public  * @param   string  * @return  string  */ function xml_encode($str)
+
+Use single line comments within code, leaving a blank line between large
+comment blocks and code.
+
+::
+
+	// break up the string by newlines $parts = explode("\n", $str);  // A longer comment that needs to give greater detail on what is // occurring and why can use multiple single-line comments.  Try to // keep the width reasonable, around 70 characters is the easiest to // read.  Don't hesitate to link to permanent external resources // that may provide greater detail: // // http://example.com/information_about_something/in_particular/  $parts = $this->foo($parts);
+
+Constants
+=========
+
+Constants follow the same guidelines as do variables, except constants
+should always be fully uppercase. *Always use CodeIgniter constants when
+appropriate, i.e. SLASH, LD, RD, PATH_CACHE, etc.*
+
+::
+
+	INCORRECT: myConstant  // missing underscore separator and not fully uppercase N       // no single-letter constants S_C_VER     // not descriptive $str = str_replace('{foo}', 'bar', $str);   // should use LD and RD constants  CORRECT: MY_CONSTANT NEWLINE SUPER_CLASS_VERSION $str = str_replace(LD.'foo'.RD, 'bar', $str);
+
+TRUE, FALSE, and NULL
+=====================
+
+**TRUE**, **FALSE**, and **NULL** keywords should always be fully
+uppercase.
+
+::
+
+	INCORRECT: if ($foo == true) $bar = false; function foo($bar = null)  CORRECT: if ($foo == TRUE) $bar = FALSE; function foo($bar = NULL)
+
+Logical Operators
+=================
+
+Use of **\|\|** is discouraged as its clarity on some output devices is
+low (looking like the number 11 for instance). **&&** is preferred over
+**AND** but either are acceptable, and a space should always precede and
+follow **!**.
+
+::
+
+	INCORRECT: if ($foo || $bar) if ($foo AND $bar)  // okay but not recommended for common syntax highlighting applications if (!$foo) if (! is_array($foo))  CORRECT: if ($foo OR $bar) if ($foo && $bar) // recommended if ( ! $foo) if ( ! is_array($foo))
+
+Comparing Return Values and Typecasting
+=======================================
+
+Some PHP functions return FALSE on failure, but may also have a valid
+return value of "" or 0, which would evaluate to FALSE in loose
+comparisons. Be explicit by comparing the variable type when using these
+return values in conditionals to ensure the return value is indeed what
+you expect, and not a value that has an equivalent loose-type
+evaluation.
+
+Use the same stringency in returning and checking your own variables.
+Use **===** and **!==** as necessary.
+::
+
+	INCORRECT: // If 'foo' is at the beginning of the string, strpos will return a 0, // resulting in this conditional evaluating as TRUE if (strpos($str, 'foo') == FALSE)  CORRECT: if (strpos($str, 'foo') === FALSE)
+
+::
+
+	INCORRECT: function build_string($str = "") {     if ($str == "") // uh-oh!  What if FALSE or the integer 0 is passed as an argument?     {      } }  CORRECT: function build_string($str = "") {     if ($str === "")     {      } }
+
+
+See also information regarding
+`typecasting <http://us3.php.net/manual/en/language.types.type-juggling.php#language.types.typecasting>`_,
+which can be quite useful. Typecasting has a slightly different effect
+which may be desirable. When casting a variable as a string, for
+instance, NULL and boolean FALSE variables become empty strings, 0 (and
+other numbers) become strings of digits, and boolean TRUE becomes "1"::
+
+	$str = (string) $str; // cast $str as a string
+
+Debugging Code
+==============
+
+No debugging code can be left in place for submitted add-ons unless it
+is commented out, i.e. no var_dump(), print_r(), die(), and exit()
+calls that were used while creating the add-on, unless they are
+commented out.
+
+::
+
+	// print_r($foo);
+
+Whitespace in Files
+===================
+
+No whitespace can precede the opening PHP tag or follow the closing PHP
+tag. Output is buffered, so whitespace in your files can cause output to
+begin before CodeIgniter outputs its content, leading to errors and an
+inability for CodeIgniter to send proper headers. In the examples below,
+select the text with your mouse to reveal the incorrect whitespace.
+
+**INCORRECT**::
+
+	 <?php     // ...there is whitespace and a linebreak above the opening PHP tag     // as well as whitespace after the closing PHP tag ?>
+
+**CORRECT**::
+
+	<?php     // this sample has no whitespace before or after the opening and closing PHP tags ?>
+
+Compatibility
+=============
+
+Unless specifically mentioned in your add-on's documentation, all code
+must be compatible with PHP version 5.1+. Additionally, do not use PHP
+functions that require non-default libraries to be installed unless your
+code contains an alternative method when the function is not available,
+or you implicitly document that your add-on requires said PHP libraries.
+
+Class and File Names using Common Words
+=======================================
+
+When your class or filename is a common word, or might quite likely be
+identically named in another PHP script, provide a unique prefix to help
+prevent collision. Always realize that your end users may be running
+other add-ons or third party PHP scripts. Choose a prefix that is unique
+to your identity as a developer or company.
+
+::
+
+	INCORRECT: class Email     pi.email.php class Xml       ext.xml.php class Import        mod.import.php  CORRECT: class Pre_email     pi.pre_email.php class Pre_xml       ext.pre_xml.php class Pre_import    mod.pre_import.php
+
+Database Table Names
+====================
+
+Any tables that your add-on might use must use the 'exp\_' prefix,
+followed by a prefix uniquely identifying you as the developer or
+company, and then a short descriptive table name. You do not need to be
+concerned about the database prefix being used on the user's
+installation, as CodeIgniter's database class will automatically convert
+'exp\_' to what is actually being used.
+
+::
+
+	INCORRECT: email_addresses     // missing both prefixes pre_email_addresses // missing exp_ prefix exp_email_addresses // missing unique prefix  CORRECT: exp_pre_email_addresses
+
+**NOTE:** Be mindful that MySQL has a limit of 64 characters for table
+names. This should not be an issue as table names that would exceed this
+would likely have unreasonable names. For instance, the following table
+name exceeds this limitation by one character. Silly, no?
+**exp_pre_email_addresses_of_registered_users_in_seattle_washington**
+One File per Class
+==================
+
+Use separate files for each class your add-on uses, unless the classes
+are *closely related*. An example of CodeIgniter files that contains
+multiple classes is the Database class file, which contains both the DB
+class and the DB_Cache class, and the Magpie plugin, which contains
+both the Magpie and Snoopy classes.
+
+Whitespace
+==========
+
+Use tabs for whitespace in your code, not spaces. This may seem like a
+small thing, but using tabs instead of whitespace allows the developer
+looking at your code to have indentation at levels that they prefer and
+customize in whatever application they use. And as a side benefit, it
+results in (slightly) more compact files, storing one tab character
+versus, say, four space characters.
+
+Line Breaks
+===========
+
+Files must be saved with Unix line breaks. This is more of an issue for
+developers who work in Windows, but in any case ensure that your text
+editor is setup to save files with Unix line breaks.
+
+Code Indenting
+==============
+
+Use Allman style indenting. With the exception of Class declarations,
+braces are always placed on a line by themselves, and indented at the
+same level as the control statement that "owns" them.
+
+::
+
+	INCORRECT: function foo($bar) {     // ... }  foreach ($arr as $key => $val) {     // ... }  if ($foo == $bar) {     // ... } else {     // ... }  for ($i = 0; $i < 10; $i++)     {     for ($j = 0; $j < 10; $j++)         {         // ...         }     }  CORRECT: function foo($bar) {     // ... }  foreach ($arr as $key => $val) {     // ... }  if ($foo == $bar) {     // ... } else {     // ... }  for ($i = 0; $i < 10; $i++) {     for ($j = 0; $j < 10; $j++)     {         // ...     } }
+
+Bracket and Parenthetic Spacing
+===============================
+
+In general, parenthesis and brackets should not use any additional
+spaces. The exception is that a space should always follow PHP control
+structures that accept arguments with parenthesis (declare, do-while,
+elseif, for, foreach, if, switch, while), to help distinguish them from
+functions and increase readability.
+
+::
+
+	INCORRECT: $arr[ $foo ] = 'foo';  CORRECT: $arr[$foo] = 'foo'; // no spaces around array keys   INCORRECT: function foo ( $bar ) {  }  CORRECT: function foo($bar) // no spaces around parenthesis in function declarations {  }   INCORRECT: foreach( $query->result() as $row )  CORRECT: foreach ($query->result() as $row) // single space following PHP control structures, but not in interior parenthesis
+
+Localized Text
+==============
+
+Any text that is output in the control panel should use language
+variables in your lang file to allow localization.
+
+::
+
+	INCORRECT: return "Invalid Selection";  CORRECT: return $this->lang->line('invalid_selection');
+
+Private Methods and Variables
+=============================
+
+Methods and variables that are only accessed internally by your class,
+such as utility and helper functions that your public methods use for
+code abstraction, should be prefixed with an underscore.
+
+::
+
+	convert_text()        // public method _convert_text()     // private method
+
+PHP Errors
+==========
+
+Code must run error free and not rely on warnings and notices to be
+hidden to meet this requirement. For instance, never access a variable
+that you did not set yourself (such as $_POST array keys) without first
+checking to see that it isset().
+
+Make sure that while developing your add-on, error reporting is enabled
+for ALL users, and that display_errors is enabled in the PHP
+environment. You can check this setting with::
+
+	if (ini_get('display_errors') == 1) {     exit "Enabled"; }
+
+On some servers where display_errors is disabled, and you do not have
+the ability to change this in the php.ini, you can often enable it with::
+
+	ini_set('display_errors', 1);
+
+**NOTE:** Setting the
+`display_errors <http://us.php.net/manual/en/ref.errorfunc.php#ini.display-errors>`_
+setting with ini_set() at runtime is not identical to having it enabled
+in the PHP environment. Namely, it will not have any effect if the
+script has fatal errors
+
+Short Open Tags
+===============
+
+Always use full PHP opening tags, in case a server does not have
+short_open_tag enabled.
+
+::
+
+	INCORRECT: <? echo $foo; ?>  <?=$foo?>  CORRECT: <?php echo $foo; ?>
+
+One Statement Per Line
+======================
+
+Never combine statements on one line.
+
+::
+
+	INCORRECT: $foo = 'this'; $bar = 'that'; $bat = str_replace($foo, $bar, $bag);  CORRECT: $foo = 'this'; $bar = 'that'; $bat = str_replace($foo, $bar, $bag);
+
+Strings
+=======
+
+Always use single quoted strings unless you need variables parsed, and
+in cases where you do need variables parsed, use braces to prevent
+greedy token parsing. You may also use double-quoted strings if the
+string contains single quotes, so you do not have to use escape
+characters.
+
+::
+
+	INCORRECT: "My String"                 // no variable parsing, so no use for double quotes "My string $foo"                // needs braces 'SELECT foo FROM bar WHERE baz = \'bag\''   // ugly  CORRECT: 'My String' "My string {$foo}" "SELECT foo FROM bar WHERE baz = 'bag'"
+
+SQL Queries
+===========
+
+MySQL keywords are always capitalized: SELECT, INSERT, UPDATE, WHERE,
+AS, JOIN, ON, IN, etc.
+
+Break up long queries into multiple lines for legibility, preferably
+breaking for each clause.
+
+::
+
+	INCORRECT: // keywords are lowercase and query is too long for // a single line (... indicates continuation of line) $query = $this->db->query("select foo, bar, baz, foofoo, foobar as raboof, foobaz from exp_pre_email_addresses ...where foo != 'oof' and baz != 'zab' order by foobaz limit 5, 100");  CORRECT: $query = $this->db->query("SELECT foo, bar, baz, foofoo, foobar AS raboof, foobaz                 FROM exp_pre_email_addresses                 WHERE foo != 'oof'                 AND baz != 'zab'                 ORDER BY foobaz                 LIMIT 5, 100");
+
+Default Function Arguments
+==========================
+
+Whenever appropriate, provide function argument defaults, which helps
+prevent PHP errors with mistaken calls and provides common fallback
+values which can save a few lines of code. Example::
+
+	function foo($bar = '', $baz = FALSE)
+
diff --git a/user_guide_src/source/general/urls.rst b/user_guide_src/source/general/urls.rst
new file mode 100644
index 000000000..296271ed9
--- /dev/null
+++ b/user_guide_src/source/general/urls.rst
@@ -0,0 +1,88 @@
+################
+CodeIgniter URLs
+################
+
+By default, URLs in CodeIgniter are designed to be search-engine and
+human friendly. Rather than using the standard "query string" approach
+to URLs that is synonymous with dynamic systems, CodeIgniter uses a
+**segment-based** approach::
+
+	example.com/news/article/my_article
+
+.. note:: Query string URLs can be optionally enabled, as described
+	below.
+
+URI Segments
+============
+
+The segments in the URL, in following with the Model-View-Controller
+approach, usually represent::
+
+	example.com/class/function/ID
+
+
+#. The first segment represents the controller **class** that should be
+   invoked.
+#. The second segment represents the class **function**, or method, that
+   should be called.
+#. The third, and any additional segments, represent the ID and any
+   variables that will be passed to the controller.
+
+The :doc::doc:`URI Class <../libraries/uri>` and the `URL
+Helper <../helpers/url_helper>` contain functions that make it
+easy to work with your URI data. In addition, your URLs can be remapped
+using the :doc:`URI Routing <routing>` feature for more flexibility.
+
+Removing the index.php file
+===========================
+
+By default, the **index.php** file will be included in your URLs::
+
+	example.com/index.php/news/article/my_article
+
+You can easily remove this file by using a .htaccess file with some
+simple rules. Here is an example of such a file, using the "negative"
+method in which everything is redirected except the specified items::
+
+	RewriteEngine on RewriteCond $1 !^(index\.php|images|robots\.txt) RewriteRule ^(.*)$ /index.php/$1 [L]
+
+In the above example, any HTTP request other than those for index.php,
+images, and robots.txt is treated as a request for your index.php file.
+
+Adding a URL Suffix
+===================
+
+In your config/config.php file you can specify a suffix that will be
+added to all URLs generated by CodeIgniter. For example, if a URL is
+this::
+
+	example.com/index.php/products/view/shoes
+
+You can optionally add a suffix, like .html, making the page appear to
+be of a certain type::
+
+	example.com/index.php/products/view/shoes.html
+
+Enabling Query Strings
+======================
+
+In some cases you might prefer to use query strings URLs::
+
+	index.php?c=products&m=view&id=345
+
+CodeIgniter optionally supports this capability, which can be enabled in
+your application/config.php file. If you open your config file you'll
+see these items::
+
+	$config['enable_query_strings'] = FALSE; $config['controller_trigger'] = 'c'; $config['function_trigger'] = 'm';
+
+If you change "enable_query_strings" to TRUE this feature will become
+active. Your controllers and functions will then be accessible using the
+"trigger" words you've set to invoke your controllers and methods::
+
+	index.php?c=controller&m=method
+
+**Please note:** If you are using query strings you will have to build
+your own URLs, rather than utilizing the URL helpers (and other helpers
+that generate URLs, like some of the form helpers) as these are designed
+to work with segment based URLs.
diff --git a/user_guide_src/source/general/views.rst b/user_guide_src/source/general/views.rst
new file mode 100644
index 000000000..cb60ce20f
--- /dev/null
+++ b/user_guide_src/source/general/views.rst
@@ -0,0 +1,138 @@
+#####
+Views
+#####
+
+A view is simply a web page, or a page fragment, like a header, footer,
+sidebar, etc. In fact, views can flexibly be embedded within other views
+(within other views, etc., etc.) if you need this type of hierarchy.
+
+Views are never called directly, they must be loaded by a
+:doc:`controller <controllers>`. Remember that in an MVC framework, the
+Controller acts as the traffic cop, so it is responsible for fetching a
+particular view. If you have not read the
+:doc:`Controllers <controllers>` page you should do so before
+continuing.
+
+Using the example controller you created in the
+:doc:`controller <controllers>` page, let's add a view to it.
+
+Creating a View
+===============
+
+Using your text editor, create a file called blogview.php, and put this
+in it:
+
+<html> <head> <title>My Blog</title> </head> <body> <h1>Welcome to my
+Blog!</h1> </body> </html>
+Then save the file in your application/views/ folder.
+
+Loading a View
+==============
+
+To load a particular view file you will use the following function::
+
+	$this->load->view('name');
+
+Where name is the name of your view file. Note: The .php file extension
+does not need to be specified unless you use something other than .php.
+
+Now, open the controller file you made earlier called blog.php, and
+replace the echo statement with the view loading function:
+
+<?php class Blog extends CI_Controller { function index() {
+$this->load->view('blogview'); } } ?>
+If you visit your site using the URL you did earlier you should see your
+new view. The URL was similar to this::
+
+	example.com/index.php/blog/
+
+Loading multiple views
+======================
+
+CodeIgniter will intelligently handle multiple calls to
+$this->load->view from within a controller. If more than one call
+happens they will be appended together. For example, you may wish to
+have a header view, a menu view, a content view, and a footer view. That
+might look something like this::
+
+	<?php  class Page extends CI_Controller {      function index()    {       $data['page_title'] =  'Your title';       $this->load->view('header');       $this->load->view('menu');       $this->load->view('content', $data);       $this->load->view('footer');    }  }     ?>
+
+
+In the example above, we are using "dynamically added data", which you
+will see below.
+
+Storing Views within Sub-folders
+================================
+
+Your view files can also be stored within sub-folders if you prefer that
+type of organization. When doing so you will need to include the folder
+name loading the view. Example::
+
+	$this->load->view('folder_name/file_name');
+
+Adding Dynamic Data to the View
+===============================
+
+Data is passed from the controller to the view by way of an **array** or
+an **object** in the second parameter of the view loading function. Here
+is an example using an array::
+
+	$data = array(                'title' => 'My Title',                'heading' => 'My Heading',                'message' => 'My Message'           );  $this->load->view('blogview', $data);
+
+And here's an example using an object::
+
+	$data = new Someclass(); $this->load->view('blogview', $data);
+
+Note: If you use an object, the class variables will be turned into
+array elements.
+
+Let's try it with your controller file. Open it add this code:
+
+<?php class Blog extends CI_Controller { function index() {
+$data['title'] = "My Real Title"; $data['heading'] = "My Real Heading";
+$this->load->view('blogview', $data); } } ?>
+Now open your view file and change the text to variables that correspond
+to the array keys in your data:
+
+<html> <head> <title><?php echo $title;?></title> </head> <body>
+<h1><?php echo $heading;?></h1> </body> </html>
+Then load the page at the URL you've been using and you should see the
+variables replaced.
+
+Creating Loops
+==============
+
+The data array you pass to your view files is not limited to simple
+variables. You can pass multi dimensional arrays, which can be looped to
+generate multiple rows. For example, if you pull data from your database
+it will typically be in the form of a multi-dimensional array.
+
+Here's a simple example. Add this to your controller:
+
+<?php class Blog extends CI_Controller { function index() {
+$data['todo_list'] = array('Clean House', 'Call Mom', 'Run Errands');
+$data['title'] = "My Real Title"; $data['heading'] = "My Real Heading";
+$this->load->view('blogview', $data); } } ?>
+Now open your view file and create a loop:
+
+<html> <head> <title><?php echo $title;?></title> </head> <body>
+<h1><?php echo $heading;?></h1> <h3>My Todo List</h3> <ul> <?php foreach
+($todo_list as $item):?> <li><?php echo $item;?></li> <?php
+endforeach;?> </ul> </body> </html>
+
+.. note:: You'll notice that in the example above we are using PHP's
+	alternative syntax. If you are not familiar with it you can read about
+	it `here </general/alternative_php>`.
+
+Returning views as data
+=======================
+
+There is a third **optional** parameter lets you change the behavior of
+the function so that it returns data as a string rather than sending it
+to your browser. This can be useful if you want to process the data in
+some way. If you set the parameter to true (boolean) it will return
+data. The default behavior is false, which sends it to your browser.
+Remember to assign it to a variable if you want the data returned::
+
+	$string = $this->load->view('myfile', '', true);
+