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diff --git a/user_guide/libraries/config.html b/user_guide/libraries/config.html deleted file mode 100644 index 7052c79e0..000000000 --- a/user_guide/libraries/config.html +++ /dev/null @@ -1,834 +0,0 @@ - - -<!DOCTYPE html> -<!--[if IE 8]><html class="no-js lt-ie9" lang="en" > <![endif]--> -<!--[if gt IE 8]><!--> <html class="no-js" lang="en" > <!--<![endif]--> -<head> - <meta charset="utf-8"> - <meta name="viewport" content="width=device-width, initial-scale=1.0"> - - <title>Config Class — CodeIgniter 3.1.7 documentation</title> - - - - - <link rel="shortcut icon" href="../_static/ci-icon.ico"/> - - - - <link href='https://fonts.googleapis.com/css?family=Lato:400,700,400italic,700italic|Roboto+Slab:400,700|Inconsolata:400,700&subset=latin,cyrillic' rel='stylesheet' type='text/css'> - - - - - - - - - - <link rel="stylesheet" href="../_static/css/citheme.css" type="text/css" /> - - - - <link rel="index" title="Index" - href="../genindex.html"/> - <link rel="search" title="Search" 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</ul> - <hr/> -</div> - <div role="main" class="document"> - - <div class="section" id="config-class"> -<h1>Config Class<a class="headerlink" href="#config-class" title="Permalink to this headline">¶</a></h1> -<p>The Config class provides a means to retrieve configuration preferences. -These preferences can come from the default config file -(application/config/config.php) or from your own custom config files.</p> -<div class="admonition note"> -<p class="first admonition-title">Note</p> -<p class="last">This class is initialized automatically by the system so there -is no need to do it manually.</p> -</div> -<div class="contents local topic" id="contents"> -<ul class="simple"> -<li><a class="reference internal" href="#working-with-the-config-class" id="id1">Working with the Config Class</a><ul> -<li><a class="reference internal" href="#anatomy-of-a-config-file" id="id2">Anatomy of a Config File</a></li> -<li><a class="reference internal" href="#loading-a-config-file" id="id3">Loading a Config File</a><ul> -<li><a class="reference internal" href="#manual-loading" id="id4">Manual Loading</a></li> -<li><a class="reference internal" href="#auto-loading" id="id5">Auto-loading</a></li> -</ul> -</li> -<li><a class="reference internal" href="#fetching-config-items" id="id6">Fetching Config Items</a></li> -<li><a class="reference internal" href="#setting-a-config-item" id="id7">Setting a Config Item</a></li> -<li><a class="reference internal" href="#environments" id="id8">Environments</a></li> -</ul> -</li> -<li><a class="reference internal" href="#class-reference" id="id9">Class Reference</a></li> -</ul> -</div> -<div class="custom-index container"></div><div class="section" id="working-with-the-config-class"> -<h2><a class="toc-backref" href="#id1">Working with the Config Class</a><a class="headerlink" href="#working-with-the-config-class" title="Permalink to this headline">¶</a></h2> -<div class="section" id="anatomy-of-a-config-file"> -<h3><a class="toc-backref" href="#id2">Anatomy of a Config File</a><a class="headerlink" href="#anatomy-of-a-config-file" title="Permalink to this headline">¶</a></h3> -<p>By default, CodeIgniter has one primary config file, located at -application/config/config.php. If you open the file using your text -editor you’ll see that config items are stored in an array called -$config.</p> -<p>You can add your own config items to this file, or if you prefer to keep -your configuration items separate (assuming you even need config items), -simply create your own file and save it in config folder.</p> -<div class="admonition note"> -<p class="first admonition-title">Note</p> -<p class="last">If you do create your own config files use the same format as -the primary one, storing your items in an array called $config. -CodeIgniter will intelligently manage these files so there will be no -conflict even though the array has the same name (assuming an array -index is not named the same as another).</p> -</div> -</div> -<div class="section" id="loading-a-config-file"> -<h3><a class="toc-backref" href="#id3">Loading a Config File</a><a class="headerlink" href="#loading-a-config-file" title="Permalink to this headline">¶</a></h3> -<div class="admonition note"> -<p class="first admonition-title">Note</p> -<p class="last">CodeIgniter automatically loads the primary config file -(application/config/config.php), so you will only need to load a config -file if you have created your own.</p> -</div> -<p>There are two ways to load a config file:</p> -<div class="section" id="manual-loading"> -<h4><a class="toc-backref" href="#id4">Manual Loading</a><a class="headerlink" href="#manual-loading" title="Permalink to this headline">¶</a></h4> -<p>To load one of your custom config files you will use the following -function within the <a class="reference internal" href="../general/controllers.html"><span class="doc">controller</span></a> that -needs it:</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">config</span><span class="o">-></span><span class="na">load</span><span class="p">(</span><span class="s1">'filename'</span><span class="p">);</span> -</pre></div> -</div> -<p>Where filename is the name of your config file, without the .php file -extension.</p> -<p>If you need to load multiple config files normally they will be -merged into one master config array. Name collisions can occur, -however, if you have identically named array indexes in different -config files. To avoid collisions you can set the second parameter to -TRUE and each config file will be stored in an array index -corresponding to the name of the config file. Example:</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="c1">// Stored in an array with this prototype: $this->config['blog_settings'] = $config</span> -<span class="nv">$this</span><span class="o">-></span><span class="na">config</span><span class="o">-></span><span class="na">load</span><span class="p">(</span><span class="s1">'blog_settings'</span><span class="p">,</span> <span class="k">TRUE</span><span class="p">);</span> -</pre></div> -</div> -<p>Please see the section entitled Fetching Config Items below to learn -how to retrieve config items set this way.</p> -<p>The third parameter allows you to suppress errors in the event that a -config file does not exist:</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">config</span><span class="o">-></span><span class="na">load</span><span class="p">(</span><span class="s1">'blog_settings'</span><span class="p">,</span> <span class="k">FALSE</span><span class="p">,</span> <span class="k">TRUE</span><span class="p">);</span> -</pre></div> -</div> -</div> -<div class="section" id="auto-loading"> -<h4><a class="toc-backref" href="#id5">Auto-loading</a><a class="headerlink" href="#auto-loading" title="Permalink to this headline">¶</a></h4> -<p>If you find that you need a particular config file globally, you can -have it loaded automatically by the system. To do this, open the -<strong>autoload.php</strong> file, located at application/config/autoload.php, -and add your config file as indicated in the file.</p> -</div> -</div> -<div class="section" id="fetching-config-items"> -<h3><a class="toc-backref" href="#id6">Fetching Config Items</a><a class="headerlink" href="#fetching-config-items" title="Permalink to this headline">¶</a></h3> -<p>To retrieve an item from your config file, use the following function:</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">config</span><span class="o">-></span><span class="na">item</span><span class="p">(</span><span class="s1">'item_name'</span><span class="p">);</span> -</pre></div> -</div> -<p>Where item_name is the $config array index you want to retrieve. For -example, to fetch your language choice you’ll do this:</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$lang</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-></span><span class="na">config</span><span class="o">-></span><span class="na">item</span><span class="p">(</span><span class="s1">'language'</span><span class="p">);</span> -</pre></div> -</div> -<p>The function returns NULL if the item you are trying to fetch -does not exist.</p> -<p>If you are using the second parameter of the $this->config->load -function in order to assign your config items to a specific index you -can retrieve it by specifying the index name in the second parameter of -the $this->config->item() function. Example:</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="c1">// Loads a config file named blog_settings.php and assigns it to an index named "blog_settings"</span> -<span class="nv">$this</span><span class="o">-></span><span class="na">config</span><span class="o">-></span><span class="na">load</span><span class="p">(</span><span class="s1">'blog_settings'</span><span class="p">,</span> <span class="k">TRUE</span><span class="p">);</span> - -<span class="c1">// Retrieve a config item named site_name contained within the blog_settings array</span> -<span class="nv">$site_name</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-></span><span class="na">config</span><span class="o">-></span><span class="na">item</span><span class="p">(</span><span class="s1">'site_name'</span><span class="p">,</span> <span class="s1">'blog_settings'</span><span class="p">);</span> - -<span class="c1">// An alternate way to specify the same item:</span> -<span class="nv">$blog_config</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-></span><span class="na">config</span><span class="o">-></span><span class="na">item</span><span class="p">(</span><span class="s1">'blog_settings'</span><span class="p">);</span> -<span class="nv">$site_name</span> <span class="o">=</span> <span class="nv">$blog_config</span><span class="p">[</span><span class="s1">'site_name'</span><span class="p">];</span> -</pre></div> -</div> -</div> -<div class="section" id="setting-a-config-item"> -<h3><a class="toc-backref" href="#id7">Setting a Config Item</a><a class="headerlink" href="#setting-a-config-item" title="Permalink to this headline">¶</a></h3> -<p>If you would like to dynamically set a config item or change an existing -one, you can do so using:</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">config</span><span class="o">-></span><span class="na">set_item</span><span class="p">(</span><span class="s1">'item_name'</span><span class="p">,</span> <span class="s1">'item_value'</span><span class="p">);</span> -</pre></div> -</div> -<p>Where item_name is the $config array index you want to change, and -item_value is its value.</p> -</div> -<div class="section" id="environments"> -<span id="config-environments"></span><h3><a class="toc-backref" href="#id8">Environments</a><a class="headerlink" href="#environments" title="Permalink to this headline">¶</a></h3> -<p>You may load different configuration files depending on the current -environment. The ENVIRONMENT constant is defined in index.php, and is -described in detail in the <a class="reference internal" href="../general/environments.html"><span class="doc">Handling -Environments</span></a> section.</p> -<p>To create an environment-specific configuration file, create or copy a -configuration file in application/config/{ENVIRONMENT}/{FILENAME}.php</p> -<p>For example, to create a production-only config.php, you would:</p> -<ol class="arabic simple"> -<li>Create the directory application/config/production/</li> -<li>Copy your existing config.php into the above directory</li> -<li>Edit application/config/production/config.php so it contains your -production settings</li> -</ol> -<p>When you set the ENVIRONMENT constant to ‘production’, the settings for -your new production-only config.php will be loaded.</p> -<p>You can place the following configuration files in environment-specific -folders:</p> -<ul class="simple"> -<li>Default CodeIgniter configuration files</li> -<li>Your own custom configuration files</li> -</ul> -<div class="admonition note"> -<p class="first admonition-title">Note</p> -<p class="last">CodeIgniter always loads the global config file first (i.e., the one in application/config/), -then tries to load the configuration files for the current environment. -This means you are not obligated to place <strong>all</strong> of your configuration files in an -environment folder. Only the files that change per environment. Additionally you don’t -have to copy <strong>all</strong> the config items in the environment config file. Only the config items -that you wish to change for your environment. The config items declared in your environment -folders always overwrite those in your global config files.</p> -</div> -</div> -</div> -<div class="section" id="class-reference"> -<h2><a class="toc-backref" href="#id9">Class Reference</a><a class="headerlink" href="#class-reference" title="Permalink to this headline">¶</a></h2> -<dl class="class"> -<dt id="CI_Config"> -<em class="property">class </em><code class="descname">CI_Config</code><a class="headerlink" href="#CI_Config" title="Permalink to this definition">¶</a></dt> -<dd><dl class="attribute"> -<dt> -<code class="descname">$config</code></dt> -<dd><p>Array of all loaded config values</p> -</dd></dl> - -<dl class="attribute"> -<dt> -<code class="descname">$is_loaded</code></dt> -<dd><p>Array of all loaded config files</p> -</dd></dl> - -<dl class="method"> -<dt id="CI_Config::item"> -<code class="descname">item</code><span class="sig-paren">(</span><em>$item</em><span class="optional">[</span>, <em>$index=''</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Config::item" title="Permalink to this definition">¶</a></dt> -<dd><table class="docutils field-list" frame="void" rules="none"> -<col class="field-name" /> -<col class="field-body" /> -<tbody valign="top"> -<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple"> -<li><strong>$item</strong> (<em>string</em>) – Config item name</li> -<li><strong>$index</strong> (<em>string</em>) – Index name</li> -</ul> -</td> -</tr> -<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">Config item value or NULL if not found</p> -</td> -</tr> -<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">mixed</p> -</td> -</tr> -</tbody> -</table> -<p>Fetch a config file item.</p> -</dd></dl> - -<dl class="method"> -<dt id="CI_Config::set_item"> -<code class="descname">set_item</code><span class="sig-paren">(</span><em>$item</em>, <em>$value</em><span class="sig-paren">)</span><a class="headerlink" href="#CI_Config::set_item" title="Permalink to this definition">¶</a></dt> -<dd><table class="docutils field-list" frame="void" rules="none"> -<col class="field-name" /> -<col class="field-body" /> -<tbody valign="top"> -<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple"> -<li><strong>$item</strong> (<em>string</em>) – Config item name</li> -<li><strong>$value</strong> (<em>string</em>) – Config item value</li> -</ul> -</td> -</tr> -<tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">void</p> -</td> -</tr> -</tbody> -</table> -<p>Sets a config file item to the specified value.</p> -</dd></dl> - -<dl class="method"> -<dt id="CI_Config::slash_item"> -<code class="descname">slash_item</code><span class="sig-paren">(</span><em>$item</em><span class="sig-paren">)</span><a class="headerlink" href="#CI_Config::slash_item" title="Permalink to this definition">¶</a></dt> -<dd><table class="docutils field-list" frame="void" rules="none"> -<col class="field-name" /> -<col class="field-body" /> -<tbody valign="top"> -<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple"> -<li><strong>$item</strong> (<em>string</em>) – config item name</li> -</ul> -</td> -</tr> -<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">Config item value with a trailing forward slash or NULL if not found</p> -</td> -</tr> -<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">mixed</p> -</td> -</tr> -</tbody> -</table> -<p>This method is identical to <code class="docutils literal"><span class="pre">item()</span></code>, except it appends a forward -slash to the end of the item, if it exists.</p> -</dd></dl> - -<dl class="method"> -<dt id="CI_Config::load"> -<code class="descname">load</code><span class="sig-paren">(</span><span class="optional">[</span><em>$file = ''</em><span class="optional">[</span>, <em>$use_sections = FALSE</em><span class="optional">[</span>, <em>$fail_gracefully = FALSE</em><span class="optional">]</span><span class="optional">]</span><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Config::load" title="Permalink to this definition">¶</a></dt> -<dd><table class="docutils field-list" frame="void" rules="none"> -<col class="field-name" /> -<col class="field-body" /> -<tbody valign="top"> -<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple"> -<li><strong>$file</strong> (<em>string</em>) – Configuration file name</li> -<li><strong>$use_sections</strong> (<em>bool</em>) – Whether config values should be loaded into their own section (index of the main config array)</li> -<li><strong>$fail_gracefully</strong> (<em>bool</em>) – Whether to return FALSE or to display an error message</li> -</ul> -</td> -</tr> -<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">TRUE on success, FALSE on failure</p> -</td> -</tr> -<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">bool</p> -</td> -</tr> -</tbody> -</table> -<p>Loads a configuration file.</p> -</dd></dl> - -<dl class="method"> -<dt id="CI_Config::site_url"> -<code class="descname">site_url</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Config::site_url" title="Permalink to this definition">¶</a></dt> -<dd><table class="docutils field-list" frame="void" rules="none"> -<col class="field-name" /> -<col class="field-body" /> -<tbody valign="top"> -<tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body">Site URL</td> -</tr> -<tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body">string</td> -</tr> -</tbody> -</table> -<p>This method retrieves the URL to your site, along with the “index” value -you’ve specified in the config file.</p> -<p>This method is normally accessed via the corresponding functions in the -<a class="reference internal" href="../helpers/url_helper.html"><span class="doc">URL Helper</span></a>.</p> -</dd></dl> - -<dl class="method"> -<dt id="CI_Config::base_url"> -<code class="descname">base_url</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Config::base_url" title="Permalink to this definition">¶</a></dt> -<dd><table class="docutils field-list" frame="void" rules="none"> -<col class="field-name" /> -<col class="field-body" /> -<tbody valign="top"> -<tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body">Base URL</td> -</tr> -<tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body">string</td> -</tr> -</tbody> -</table> -<p>This method retrieves the URL to your site, plus an optional path such -as to a stylesheet or image.</p> -<p>This method is normally accessed via the corresponding functions in the -<a class="reference internal" href="../helpers/url_helper.html"><span class="doc">URL Helper</span></a>.</p> -</dd></dl> - -<dl class="method"> -<dt id="CI_Config::system_url"> -<code class="descname">system_url</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Config::system_url" title="Permalink to this definition">¶</a></dt> -<dd><table class="docutils field-list" frame="void" rules="none"> -<col class="field-name" /> -<col class="field-body" /> -<tbody valign="top"> -<tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body">URL pointing at your CI system/ directory</td> -</tr> -<tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body">string</td> -</tr> -</tbody> -</table> -<p>This method retrieves the URL to your CodeIgniter system/ directory.</p> -<div class="admonition note"> -<p class="first admonition-title">Note</p> -<p class="last">This method is DEPRECATED because it encourages usage of -insecure coding practices. Your <em>system/</em> directory shouldn’t -be publicly accessible.</p> -</div> -</dd></dl> - -</dd></dl> - -</div> -</div> - - - </div> - <footer> - - <div class="rst-footer-buttons" role="navigation" aria-label="footer navigation"> - - <a href="email.html" class="btn btn-neutral float-right" title="Email Class">Next <span class="fa fa-arrow-circle-right"></span></a> - - - <a href="cart.html" class="btn btn-neutral" title="Shopping Cart Class"><span class="fa fa-arrow-circle-left"></span> Previous</a> - - </div> - - - <hr/> - - <div role="contentinfo"> - <p> - © Copyright 2014 - 2018, British Columbia Institute of Technology. - Last updated on Jan 13, 2018. - </p> - </div> - - Built with <a href="http://sphinx-doc.org/">Sphinx</a> using a <a href="https://github.com/snide/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>. - -</footer> - </div> - </div> - - </section> - - </div> - - - - - - <script type="text/javascript"> - var DOCUMENTATION_OPTIONS = { - URL_ROOT:'../', - VERSION:'3.1.7', - COLLAPSE_INDEX:false, - FILE_SUFFIX:'.html', - HAS_SOURCE: false - }; - </script> - <script type="text/javascript" src="../_static/jquery.js"></script> - <script type="text/javascript" src="../_static/underscore.js"></script> - <script type="text/javascript" src="../_static/doctools.js"></script> - - - - - - <script type="text/javascript" src="../_static/js/theme.js"></script> - - - - - <script type="text/javascript"> - jQuery(function () { - SphinxRtdTheme.StickyNav.enable(); - }); - </script> - - -</body> -</html>
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