diff options
Diffstat (limited to 'user_guide/database/configuration.html')
| -rw-r--r-- | user_guide/database/configuration.html | 312 |
1 files changed, 156 insertions, 156 deletions
diff --git a/user_guide/database/configuration.html b/user_guide/database/configuration.html index f2da5808b..c6991aaaf 100644 --- a/user_guide/database/configuration.html +++ b/user_guide/database/configuration.html @@ -1,157 +1,157 @@ -<!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 1.7</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:</p>
-
-<p><kbd>application/config/database.php</kbd></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";</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";</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.</li>
-<li><strong>port</strong> - The database port number. Currently only used with the Postgres driver. To use this value you have to add a line to the database config array.<code>$db['default']['port'] = 5432;</code></li>
-</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 © 2006-2008 · <a href="http://ellislab.com/">Ellislab, Inc.</a></p>
-</div>
-
-</body>
+<!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 1.7</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:</p> + +<p><kbd>application/config/database.php</kbd></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 /> +$db['default']['dbcollat'] = "utf8_general_ci";</code> + +<p>The reason we use a multi-dimensional array rather than a more simple one is to permit you to optionally store +multiple sets of connection values. If, for example, you run multiple environments (development, production, test, etc.) +under a single installation, you can set up a connection group for each, then switch between groups as needed. +For example, to set up a "test" environment you would do this:</p> + +<code>$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 /> +$db['test']['dbcollat'] = "utf8_general_ci";</code> + + +<p>Then, to globally tell the system to use that group you would set this variable located in the config file:</p> + +<code>$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.</li> +<li><strong>port</strong> - The database port number. Currently only used with the Postgres driver. To use this value you have to add a line to the database config array.<code>$db['default']['port'] = 5432;</code></li> +</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 © 2006-2008 · <a href="http://ellislab.com/">Ellislab, Inc.</a></p> +</div> + +</body> </html>
\ No newline at end of file |