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diff --git a/user_guide/database/configuration.html b/user_guide/database/configuration.html deleted file mode 100644 index 0b968db06..000000000 --- a/user_guide/database/configuration.html +++ /dev/null @@ -1,758 +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>Database Configuration — CodeIgniter 3.1.9 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 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style="float:right;margin-left:5px;" id="closeMe"> - <img title="Classic Layout" alt="classic layout" src="data:image/gif;base64,R0lGODlhFAAUAJEAAAAAADMzM////wAAACH5BAUUAAIALAAAAAAUABQAAAImlI+py+0PU5gRBRDM3DxbWoXis42X13USOLauUIqnlsaH/eY6UwAAOw==" /> - </div> - </ul> - <hr/> -</div> - <div role="main" class="document"> - - <div class="section" id="database-configuration"> -<h1>Database Configuration<a class="headerlink" href="#database-configuration" title="Permalink to this headline">¶</a></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 application/config/database.php. You can also set -database connection values for specific -<a class="reference internal" href="../libraries/config.html"><span class="doc">environments</span></a> by placing <strong>database.php</strong> -in the respective environment config folder.</p> -<p>The config settings are stored in a multi-dimensional array with this -prototype:</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$db</span><span class="p">[</span><span class="s1">'default'</span><span class="p">]</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span> - <span class="s1">'dsn'</span> <span class="o">=></span> <span class="s1">''</span><span class="p">,</span> - <span class="s1">'hostname'</span> <span class="o">=></span> <span class="s1">'localhost'</span><span class="p">,</span> - <span class="s1">'username'</span> <span class="o">=></span> <span class="s1">'root'</span><span class="p">,</span> - <span class="s1">'password'</span> <span class="o">=></span> <span class="s1">''</span><span class="p">,</span> - <span class="s1">'database'</span> <span class="o">=></span> <span class="s1">'database_name'</span><span class="p">,</span> - <span class="s1">'dbdriver'</span> <span class="o">=></span> <span class="s1">'mysqli'</span><span class="p">,</span> - <span class="s1">'dbprefix'</span> <span class="o">=></span> <span class="s1">''</span><span class="p">,</span> - <span class="s1">'pconnect'</span> <span class="o">=></span> <span class="k">TRUE</span><span class="p">,</span> - <span class="s1">'db_debug'</span> <span class="o">=></span> <span class="k">TRUE</span><span class="p">,</span> - <span class="s1">'cache_on'</span> <span class="o">=></span> <span class="k">FALSE</span><span class="p">,</span> - <span class="s1">'cachedir'</span> <span class="o">=></span> <span class="s1">''</span><span class="p">,</span> - <span class="s1">'char_set'</span> <span class="o">=></span> <span class="s1">'utf8'</span><span class="p">,</span> - <span class="s1">'dbcollat'</span> <span class="o">=></span> <span class="s1">'utf8_general_ci'</span><span class="p">,</span> - <span class="s1">'swap_pre'</span> <span class="o">=></span> <span class="s1">''</span><span class="p">,</span> - <span class="s1">'encrypt'</span> <span class="o">=></span> <span class="k">FALSE</span><span class="p">,</span> - <span class="s1">'compress'</span> <span class="o">=></span> <span class="k">FALSE</span><span class="p">,</span> - <span class="s1">'stricton'</span> <span class="o">=></span> <span class="k">FALSE</span><span class="p">,</span> - <span class="s1">'failover'</span> <span class="o">=></span> <span class="k">array</span><span class="p">()</span> -<span class="p">);</span> -</pre></div> -</div> -<p>Some database drivers (such as PDO, PostgreSQL, Oracle, ODBC) might -require a full DSN string to be provided. If that is the case, you -should use the ‘dsn’ configuration setting, as if you’re using the -driver’s underlying native PHP extension, like this:</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="c1">// PDO</span> -<span class="nv">$db</span><span class="p">[</span><span class="s1">'default'</span><span class="p">][</span><span class="s1">'dsn'</span><span class="p">]</span> <span class="o">=</span> <span class="s1">'pgsql:host=localhost;port=5432;dbname=database_name'</span><span class="p">;</span> - -<span class="c1">// Oracle</span> -<span class="nv">$db</span><span class="p">[</span><span class="s1">'default'</span><span class="p">][</span><span class="s1">'dsn'</span><span class="p">]</span> <span class="o">=</span> <span class="s1">'//localhost/XE'</span><span class="p">;</span> -</pre></div> -</div> -<div class="admonition note"> -<p class="first admonition-title">Note</p> -<p class="last">If you do not specify a DSN string for a driver that requires it, CodeIgniter -will try to build it with the rest of the provided settings.</p> -</div> -<div class="admonition note"> -<p class="first admonition-title">Note</p> -<p class="last">If you provide a DSN string and it is missing some valid settings (e.g. the -database character set), which are present in the rest of the configuration -fields, CodeIgniter will append them.</p> -</div> -<p>You can also specify failovers for the situation when the main connection cannot connect for some reason. -These failovers can be specified by setting the failover for a connection like this:</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$db</span><span class="p">[</span><span class="s1">'default'</span><span class="p">][</span><span class="s1">'failover'</span><span class="p">]</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span> - <span class="k">array</span><span class="p">(</span> - <span class="s1">'hostname'</span> <span class="o">=></span> <span class="s1">'localhost1'</span><span class="p">,</span> - <span class="s1">'username'</span> <span class="o">=></span> <span class="s1">''</span><span class="p">,</span> - <span class="s1">'password'</span> <span class="o">=></span> <span class="s1">''</span><span class="p">,</span> - <span class="s1">'database'</span> <span class="o">=></span> <span class="s1">''</span><span class="p">,</span> - <span class="s1">'dbdriver'</span> <span class="o">=></span> <span class="s1">'mysqli'</span><span class="p">,</span> - <span class="s1">'dbprefix'</span> <span class="o">=></span> <span class="s1">''</span><span class="p">,</span> - <span class="s1">'pconnect'</span> <span class="o">=></span> <span class="k">TRUE</span><span class="p">,</span> - <span class="s1">'db_debug'</span> <span class="o">=></span> <span class="k">TRUE</span><span class="p">,</span> - <span class="s1">'cache_on'</span> <span class="o">=></span> <span class="k">FALSE</span><span class="p">,</span> - <span class="s1">'cachedir'</span> <span class="o">=></span> <span class="s1">''</span><span class="p">,</span> - <span class="s1">'char_set'</span> <span class="o">=></span> <span class="s1">'utf8'</span><span class="p">,</span> - <span class="s1">'dbcollat'</span> <span class="o">=></span> <span class="s1">'utf8_general_ci'</span><span class="p">,</span> - <span class="s1">'swap_pre'</span> <span class="o">=></span> <span class="s1">''</span><span class="p">,</span> - <span class="s1">'encrypt'</span> <span class="o">=></span> <span class="k">FALSE</span><span class="p">,</span> - <span class="s1">'compress'</span> <span class="o">=></span> <span class="k">FALSE</span><span class="p">,</span> - <span class="s1">'stricton'</span> <span class="o">=></span> <span class="k">FALSE</span> - <span class="p">),</span> - <span class="k">array</span><span class="p">(</span> - <span class="s1">'hostname'</span> <span class="o">=></span> <span class="s1">'localhost2'</span><span class="p">,</span> - <span class="s1">'username'</span> <span class="o">=></span> <span class="s1">''</span><span class="p">,</span> - <span class="s1">'password'</span> <span class="o">=></span> <span class="s1">''</span><span class="p">,</span> - <span class="s1">'database'</span> <span class="o">=></span> <span class="s1">''</span><span class="p">,</span> - <span class="s1">'dbdriver'</span> <span class="o">=></span> <span class="s1">'mysqli'</span><span class="p">,</span> - <span class="s1">'dbprefix'</span> <span class="o">=></span> <span class="s1">''</span><span class="p">,</span> - <span class="s1">'pconnect'</span> <span class="o">=></span> <span class="k">TRUE</span><span class="p">,</span> - <span class="s1">'db_debug'</span> <span class="o">=></span> <span class="k">TRUE</span><span class="p">,</span> - <span class="s1">'cache_on'</span> <span class="o">=></span> <span class="k">FALSE</span><span class="p">,</span> - <span class="s1">'cachedir'</span> <span class="o">=></span> <span class="s1">''</span><span class="p">,</span> - <span class="s1">'char_set'</span> <span class="o">=></span> <span class="s1">'utf8'</span><span class="p">,</span> - <span class="s1">'dbcollat'</span> <span class="o">=></span> <span class="s1">'utf8_general_ci'</span><span class="p">,</span> - <span class="s1">'swap_pre'</span> <span class="o">=></span> <span class="s1">''</span><span class="p">,</span> - <span class="s1">'encrypt'</span> <span class="o">=></span> <span class="k">FALSE</span><span class="p">,</span> - <span class="s1">'compress'</span> <span class="o">=></span> <span class="k">FALSE</span><span class="p">,</span> - <span class="s1">'stricton'</span> <span class="o">=></span> <span class="k">FALSE</span> - <span class="p">)</span> - <span class="p">);</span> -</pre></div> -</div> -<p>You can specify as many failovers as you like.</p> -<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> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$db</span><span class="p">[</span><span class="s1">'test'</span><span class="p">]</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span> - <span class="s1">'dsn'</span> <span class="o">=></span> <span class="s1">''</span><span class="p">,</span> - <span class="s1">'hostname'</span> <span class="o">=></span> <span class="s1">'localhost'</span><span class="p">,</span> - <span class="s1">'username'</span> <span class="o">=></span> <span class="s1">'root'</span><span class="p">,</span> - <span class="s1">'password'</span> <span class="o">=></span> <span class="s1">''</span><span class="p">,</span> - <span class="s1">'database'</span> <span class="o">=></span> <span class="s1">'database_name'</span><span class="p">,</span> - <span class="s1">'dbdriver'</span> <span class="o">=></span> <span class="s1">'mysqli'</span><span class="p">,</span> - <span class="s1">'dbprefix'</span> <span class="o">=></span> <span class="s1">''</span><span class="p">,</span> - <span class="s1">'pconnect'</span> <span class="o">=></span> <span class="k">TRUE</span><span class="p">,</span> - <span class="s1">'db_debug'</span> <span class="o">=></span> <span class="k">TRUE</span><span class="p">,</span> - <span class="s1">'cache_on'</span> <span class="o">=></span> <span class="k">FALSE</span><span class="p">,</span> - <span class="s1">'cachedir'</span> <span class="o">=></span> <span class="s1">''</span><span class="p">,</span> - <span class="s1">'char_set'</span> <span class="o">=></span> <span class="s1">'utf8'</span><span class="p">,</span> - <span class="s1">'dbcollat'</span> <span class="o">=></span> <span class="s1">'utf8_general_ci'</span><span class="p">,</span> - <span class="s1">'swap_pre'</span> <span class="o">=></span> <span class="s1">''</span><span class="p">,</span> - <span class="s1">'compress'</span> <span class="o">=></span> <span class="k">FALSE</span><span class="p">,</span> - <span class="s1">'encrypt'</span> <span class="o">=></span> <span class="k">FALSE</span><span class="p">,</span> - <span class="s1">'stricton'</span> <span class="o">=></span> <span class="k">FALSE</span><span class="p">,</span> - <span class="s1">'failover'</span> <span class="o">=></span> <span class="k">array</span><span class="p">()</span> -<span class="p">);</span> -</pre></div> -</div> -<p>Then, to globally tell the system to use that group you would set this -variable located in the config file:</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$active_group</span> <span class="o">=</span> <span class="s1">'test'</span><span class="p">;</span> -</pre></div> -</div> -<div class="admonition note"> -<p class="first admonition-title">Note</p> -<p class="last">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> -</div> -<div class="section" id="query-builder"> -<h2>Query Builder<a class="headerlink" href="#query-builder" title="Permalink to this headline">¶</a></h2> -<p>The <a class="reference internal" href="query_builder.html"><span class="doc">Query Builder Class</span></a> is globally enabled or -disabled by setting the $query_builder variable in the database -configuration file to TRUE/FALSE (boolean). The default setting is TRUE. -If you are not using the -query builder class, setting it to FALSE will utilize fewer resources -when the database classes are initialized.</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$query_builder</span> <span class="o">=</span> <span class="k">TRUE</span><span class="p">;</span> -</pre></div> -</div> -<div class="admonition note"> -<p class="first admonition-title">Note</p> -<p class="last">that some CodeIgniter classes such as Sessions require Query -Builder to be enabled to access certain functionality.</p> -</div> -</div> -<div class="section" id="explanation-of-values"> -<h2>Explanation of Values:<a class="headerlink" href="#explanation-of-values" title="Permalink to this headline">¶</a></h2> -<table border="1" class="docutils"> -<colgroup> -<col width="17%" /> -<col width="83%" /> -</colgroup> -<thead valign="bottom"> -<tr class="row-odd"><th class="head">Name Config</th> -<th class="head">Description</th> -</tr> -</thead> -<tbody valign="top"> -<tr class="row-even"><td><strong>dsn</strong></td> -<td>The DSN connect string (an all-in-one configuration sequence).</td> -</tr> -<tr class="row-odd"><td><strong>hostname</strong></td> -<td>The hostname of your database server. Often this is ‘localhost’.</td> -</tr> -<tr class="row-even"><td><strong>username</strong></td> -<td>The username used to connect to the database.</td> -</tr> -<tr class="row-odd"><td><strong>password</strong></td> -<td>The password used to connect to the database.</td> -</tr> -<tr class="row-even"><td><strong>database</strong></td> -<td>The name of the database you want to connect to.</td> -</tr> -<tr class="row-odd"><td><strong>dbdriver</strong></td> -<td>The database type. ie: mysqli, postgre, odbc, etc. Must be specified in lower case.</td> -</tr> -<tr class="row-even"><td><strong>dbprefix</strong></td> -<td>An optional table prefix which will added to the table name when running -<a class="reference internal" href="query_builder.html"><span class="doc">Query Builder</span></a> queries. This permits multiple CodeIgniter -installations to share one database.</td> -</tr> -<tr class="row-odd"><td><strong>pconnect</strong></td> -<td>TRUE/FALSE (boolean) - Whether to use a persistent connection.</td> -</tr> -<tr class="row-even"><td><strong>db_debug</strong></td> -<td>TRUE/FALSE (boolean) - Whether database errors should be displayed.</td> -</tr> -<tr class="row-odd"><td><strong>cache_on</strong></td> -<td>TRUE/FALSE (boolean) - Whether database query caching is enabled, -see also <a class="reference internal" href="caching.html"><span class="doc">Database Caching Class</span></a>.</td> -</tr> -<tr class="row-even"><td><strong>cachedir</strong></td> -<td>The absolute server path to your database query cache directory.</td> -</tr> -<tr class="row-odd"><td><strong>char_set</strong></td> -<td>The character set used in communicating with the database.</td> -</tr> -<tr class="row-even"><td><strong>dbcollat</strong></td> -<td><p class="first">The character collation used in communicating with the database</p> -<div class="last admonition note"> -<p class="first admonition-title">Note</p> -<p class="last">Only used in the ‘mysql’ and ‘mysqli’ drivers.</p> -</div> -</td> -</tr> -<tr class="row-odd"><td><strong>swap_pre</strong></td> -<td>A default table prefix that should be swapped with dbprefix. 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.</td> -</tr> -<tr class="row-even"><td><strong>schema</strong></td> -<td>The database schema, defaults to ‘public’. Used by PostgreSQL and ODBC drivers.</td> -</tr> -<tr class="row-odd"><td><strong>encrypt</strong></td> -<td><p class="first">Whether or not to use an encrypted connection.</p> -<blockquote class="last"> -<div><ul class="simple"> -<li>‘mysql’ (deprecated), ‘sqlsrv’ and ‘pdo/sqlsrv’ drivers accept TRUE/FALSE</li> -<li>‘mysqli’ and ‘pdo/mysql’ drivers accept an array with the following options:<ul> -<li>‘ssl_key’ - Path to the private key file</li> -<li>‘ssl_cert’ - Path to the public key certificate file</li> -<li>‘ssl_ca’ - Path to the certificate authority file</li> -<li>‘ssl_capath’ - Path to a directory containing trusted CA certificates in PEM format</li> -<li>‘ssl_cipher’ - List of <em>allowed</em> ciphers to be used for the encryption, separated by colons (‘:’)</li> -<li>‘ssl_verify’ - TRUE/FALSE; Whether to verify the server certificate or not (‘mysqli’ only)</li> -</ul> -</li> -</ul> -</div></blockquote> -</td> -</tr> -<tr class="row-even"><td><strong>compress</strong></td> -<td>Whether or not to use client compression (MySQL only).</td> -</tr> -<tr class="row-odd"><td><strong>stricton</strong></td> -<td>TRUE/FALSE (boolean) - Whether to force “Strict Mode” connections, good for ensuring strict SQL -while developing an application.</td> -</tr> -<tr class="row-even"><td><strong>port</strong></td> -<td><p class="first">The database port number. To use this value you have to add a line to the database config array.</p> -<div class="last highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$db</span><span class="p">[</span><span class="s1">'default'</span><span class="p">][</span><span class="s1">'port'</span><span class="p">]</span> <span class="o">=</span> <span class="mi">5432</span><span class="p">;</span> -</pre></div> -</div> -</td> -</tr> -</tbody> -</table> -<div class="admonition note"> -<p class="first admonition-title">Note</p> -<p class="last">Depending on what database platform you are using (MySQL, PostgreSQL, -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> -</div> -</div> - - - </div> - <footer> - - <div class="rst-footer-buttons" role="navigation" aria-label="footer navigation"> - - <a href="connecting.html" class="btn btn-neutral float-right" title="Connecting to your Database">Next <span class="fa fa-arrow-circle-right"></span></a> - - - <a href="examples.html" class="btn btn-neutral" title="Database Quick Start: Example Code"><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 Jun 12, 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:'3.1.9', - 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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