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| author | Kyle Farris <kylefarris@kylefarris.gotdns.org> | 2011-10-14 21:43:25 +0200 |
|---|---|---|
| committer | Kyle Farris <kylefarris@kylefarris.gotdns.org> | 2011-10-14 21:43:25 +0200 |
| commit | ad17f4b932b3728c1e299b48f28b3ae0dbdd6b0b (patch) | |
| tree | fdb357433e76000bdef60c4d18e5ab0540b07aeb /user_guide/database/configuration.html | |
| parent | db46d02ac23b8e0bc2416e197494d3b795b57530 (diff) | |
| parent | a2125a5d830fd390b4cf35f77e9bb0558cfa2dd7 (diff) | |
Merged with development
Diffstat (limited to 'user_guide/database/configuration.html')
| -rw-r--r-- | user_guide/database/configuration.html | 164 |
1 files changed, 0 insertions, 164 deletions
diff --git a/user_guide/database/configuration.html b/user_guide/database/configuration.html deleted file mode 100644 index f06b08fe8..000000000 --- a/user_guide/database/configuration.html +++ /dev/null @@ -1,164 +0,0 @@ -<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> -<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> -<head> - -<meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> -<title>Database Configuration : CodeIgniter User Guide</title> - -<style type='text/css' media='all'>@import url('../userguide.css');</style> -<link rel='stylesheet' type='text/css' media='all' href='../userguide.css' /> - -<script type="text/javascript" src="../nav/nav.js"></script> -<script type="text/javascript" src="../nav/prototype.lite.js"></script> -<script type="text/javascript" src="../nav/moo.fx.js"></script> -<script type="text/javascript" src="../nav/user_guide_menu.js"></script> - -<meta http-equiv='expires' content='-1' /> -<meta http-equiv= 'pragma' content='no-cache' /> -<meta name='robots' content='all' /> -<meta name='author' content='ExpressionEngine Dev Team' /> -<meta name='description' content='CodeIgniter User Guide' /> - -</head> -<body> - -<!-- START NAVIGATION --> -<div id="nav"><div id="nav_inner"><script type="text/javascript">create_menu('../');</script></div></div> -<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle_darker.jpg" width="154" height="43" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div> -<div id="masthead"> -<table cellpadding="0" cellspacing="0" border="0" style="width:100%"> -<tr> -<td><h1>CodeIgniter User Guide Version 2.0.3</h1></td> -<td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td> -</tr> -</table> -</div> -<!-- END NAVIGATION --> - - -<!-- START BREADCRUMB --> -<table cellpadding="0" cellspacing="0" border="0" style="width:100%"> -<tr> -<td id="breadcrumb"> -<a href="http://codeigniter.com/">CodeIgniter Home</a> › -<a href="../index.html">User Guide Home</a> › -<a href="index.html">Database Library</a> › -Configuration -</td> -<td id="searchbox"><form method="get" action="http://www.google.com/search"><input type="hidden" name="as_sitesearch" id="as_sitesearch" value="codeigniter.com/user_guide/" />Search User Guide <input type="text" class="input" style="width:200px;" name="q" id="q" size="31" maxlength="255" value="" /> <input type="submit" class="submit" name="sa" value="Go" /></form></td> -</tr> -</table> -<!-- END BREADCRUMB --> - - -<br clear="all" /> - - -<!-- START CONTENT --> -<div id="content"> - - -<h1>Database Configuration</h1> - -<p>CodeIgniter has a config file that lets you store your database connection values (username, password, database name, etc.). -The config file is located at <samp>application/config/database.php</samp>. You can also set database connection values for specific <a href="../libraries/config.html">environments</a> by placing <strong>database.php</strong> it the respective environment config folder.</p> - -<p>The config settings are stored in a multi-dimensional array with this prototype:</p> - -<code>$db['default']['hostname'] = "localhost";<br /> -$db['default']['username'] = "root";<br /> -$db['default']['password'] = "";<br /> -$db['default']['database'] = "database_name";<br /> -$db['default']['dbdriver'] = "mysql";<br /> -$db['default']['dbprefix'] = "";<br /> -$db['default']['pconnect'] = TRUE;<br /> -$db['default']['db_debug'] = FALSE;<br /> -$db['default']['cache_on'] = FALSE;<br /> -$db['default']['cachedir'] = "";<br /> -$db['default']['char_set'] = "utf8";<br /> -$db['default']['dbcollat'] = "utf8_general_ci";<br /> -$db['default']['swap_pre'] = "";<br /> -$db['default']['autoinit'] = TRUE;<br /> -$db['default']['stricton'] = FALSE;</code> - -<p>The reason we use a multi-dimensional array rather than a more simple one is to permit you to optionally store -multiple sets of connection values. If, for example, you run multiple environments (development, production, test, etc.) -under a single installation, you can set up a connection group for each, then switch between groups as needed. -For example, to set up a "test" environment you would do this:</p> - -<code>$db['test']['hostname'] = "localhost";<br /> -$db['test']['username'] = "root";<br /> -$db['test']['password'] = "";<br /> -$db['test']['database'] = "database_name";<br /> -$db['test']['dbdriver'] = "mysql";<br /> -$db['test']['dbprefix'] = "";<br /> -$db['test']['pconnect'] = TRUE;<br /> -$db['test']['db_debug'] = FALSE;<br /> -$db['test']['cache_on'] = FALSE;<br /> -$db['test']['cachedir'] = "";<br /> -$db['test']['char_set'] = "utf8";<br /> -$db['test']['dbcollat'] = "utf8_general_ci";<br /> -$db['test']['swap_pre'] = "";<br /> -$db['test']['autoinit'] = TRUE;<br /> -$db['test']['stricton'] = FALSE;</code> - - -<p>Then, to globally tell the system to use that group you would set this variable located in the config file:</p> - -<code>$active_group = "test";</code> - -<p>Note: The name "test" is arbitrary. It can be anything you want. By default we've used the word "default" -for the primary connection, but it too can be renamed to something more relevant to your project.</p> - -<h3>Active Record</h3> - -<p>The <a href="active_record.html">Active Record Class</a> is globally enabled or disabled by setting the $active_record variable in the database configuration file to TRUE/FALSE (boolean). If you are not using the active record class, setting it to FALSE will utilize fewer resources when the database classes are initialized.</p> - -<code>$active_record = TRUE;</code> - -<p class="important"><strong>Note:</strong> that some CodeIgniter classes such as Sessions require Active Records be enabled to access certain functionality.</p> - -<h3>Explanation of Values:</h3> - -<ul> -<li><strong>hostname</strong> - The hostname of your database server. Often this is "localhost".</li> -<li><strong>username</strong> - The username used to connect to the database.</li> -<li><strong>password</strong> - The password used to connect to the database.</li> -<li><strong>database</strong> - The name of the database you want to connect to.</li> -<li><strong>dbdriver</strong> - The database type. ie: mysql, postgres, odbc, etc. Must be specified in lower case.</li> -<li><strong>dbprefix</strong> - An optional table prefix which will added to the table name when running <a href="active_record.html">Active Record</a> queries. This permits multiple CodeIgniter installations to share one database.</li> -<li><strong>pconnect</strong> - TRUE/FALSE (boolean) - Whether to use a persistent connection.</li> -<li><strong>db_debug</strong> - TRUE/FALSE (boolean) - Whether database errors should be displayed.</li> -<li><strong>cache_on</strong> - TRUE/FALSE (boolean) - Whether database query caching is enabled, see also <a href="caching.html">Database Caching Class</a>.</li> -<li><strong>cachedir</strong> - The absolute server path to your database query cache directory.</li> -<li><strong>char_set</strong> - The character set used in communicating with the database.</li> -<li><strong>dbcollat</strong> - The character collation used in communicating with the database. <p class="important"><strong>Note:</strong> For MySQL and MySQLi databases, this setting is only used as a backup if your server is running PHP < 5.2.3 or MySQL < 5.0.7 (and in table creation queries made with DB Forge). There is an incompatibility in PHP with mysql_real_escape_string() which can make your site vulnerable to SQL injection if you are using a multi-byte character set and are running versions lower than these. Sites using Latin-1 or UTF-8 database character set and collation are unaffected.</p></li> -<li><strong>swap_pre</strong> - A default table prefix that should be swapped with <var>dbprefix</var>. This is useful for distributed applications where you might run manually written queries, and need the prefix to still be customizable by the end user.</li> -<li><strong>autoinit</strong> - Whether or not to automatically connect to the database when the library loads. If set to false, the connection will take place prior to executing the first query.</li> -<li><strong>stricton</strong> - TRUE/FALSE (boolean) - Whether to force "Strict Mode" connections, good for ensuring strict SQL while developing an application.</li> -<li><strong>port</strong> - The database port number. To use this value you have to add a line to the database config array.<code>$db['default']['port'] = 5432;</code> -</ul> - -<p class="important"><strong>Note:</strong> Depending on what database platform you are using (MySQL, Postgres, etc.) -not all values will be needed. For example, when using SQLite you will not need to supply a username or password, and -the database name will be the path to your database file. The information above assumes you are using MySQL.</p> - - - -</div> -<!-- END CONTENT --> - - -<div id="footer"> -<p> -Previous Topic: <a href="examples.html">Quick Start: Usage Examples</a> - · -<a href="#top">Top of Page</a> · -<a href="../index.html">User Guide Home</a> · -Next Topic: <a href="connecting.html">Connecting to your Database</a> -</p> -<p><a href="http://codeigniter.com">CodeIgniter</a> · Copyright © 2006 - 2011 · <a href="http://ellislab.com/">EllisLab, Inc.</a></p> -</div> - -</body> -</html>
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