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authoradmin <devnull@localhost>2006-08-25 19:25:49 +0200
committeradmin <devnull@localhost>2006-08-25 19:25:49 +0200
commitb0dd10f8171945e0c1f3527dd1e9d18b043e01a7 (patch)
treec3583ba09e72217683c4304f4690df6ce39ba731 /user_guide/general/base_classes.html
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+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+<html>
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+
+<title>Code Igniter User Guide</title>
+
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+<div id="masthead">
+<table cellpadding="0" cellspacing="0" border="0" style="width:100%">
+<tr>
+<td><h1>Code Igniter User Guide Version 1.4.0</h1></td>
+<td id="breadcrumb_right"><a href="../toc.html">Full Table of Contents</a></td>
+</tr>
+</table>
+</div>
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+<!-- START BREADCRUMB -->
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+<tr>
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+<a href="http://www.codeigniter.com/">Code Igniter Home</a> &nbsp;&#8250;&nbsp;
+<a href="../index.html">User Guide Home</a> &nbsp;&#8250;&nbsp;
+Replacing System Classes
+</td>
+<td id="searchbox"><form method="get" action="http://www.google.com/search"><input type="hidden" name="as_sitesearch" id="as_sitesearch" value="www.codeigniter.com/user_guide/" />Search User Guide&nbsp; <input type="text" class="input" style="width:200px;" name="q" id="q" size="31" maxlength="255" value="" />&nbsp;<input type="submit" class="submit" name="sa" value="Go" /></form></td>
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+<!-- START CONTENT -->
+<div id="content">
+
+<h1>Replacing System Classes</h1>
+
+<p>Every time Code Igniter 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 files with your own versions.&nbsp; Most users will never have any need to do this,
+but the option to replace them does exist for those that would like to significantly alter the Code Igniter core.
+</p>
+
+<p class="important"><strong>Note:</strong>&nbsp; Replacing a core system class with your own version has a lot of implications, so make sure you
+know what you are doing before attempting it.</p>
+
+
+<h2>System Class List</h2>
+
+<p>The following is a list of the core system files that are invoked every time Code Igniter runs:</p>
+
+<ul>
+<li>Benchmark</li>
+<li>Input</li>
+<li>Config</li>
+<li>Hooks</li>
+<li>Router</li>
+<li>URI</li>
+<li>Language</li>
+<li>Loader</li>
+<li>Controller</li>
+<li>Output</li>
+</ul>
+
+<h2>Replacing Core Classes</h2>
+
+<p>To use one of your own system classes instead of a default one simply place your version inside your local <dfn>libraries</dfn> directory:</p>
+
+<code>application/libraries/<dfn>some-class.php</dfn></code>
+
+<p>Any file named identically to one from the list above will be used instead of the one normally used.</p>
+
+<p>Please note that your class must use <kbd>CI</kbd> as a prefix. For example, if your file is named <kbd>Input.php</kbd> the class will be named:</p>
+
+<code>
+class CI_Input {<br /><br />
+
+}
+</code>
+
+
+
+
+
+</div>
+<!-- END CONTENT -->
+
+
+<div id="footer">
+<p>
+Previous Topic:&nbsp;&nbsp;<a href="hooks.html">Hooks</a>
+&nbsp;&nbsp;&nbsp;&middot;&nbsp;&nbsp;
+<a href="#top">Top of Page</a>&nbsp;&nbsp;&nbsp;&middot;&nbsp;&nbsp;
+<a href="../index.html">User Guide Home</a>&nbsp;&nbsp;&nbsp;&middot;&nbsp;&nbsp;
+Next Topic:&nbsp;&nbsp;<a href="scaffolding.html">Scaffolding</a>
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+<p><a href="http://www.codeigniter.com">Code Igniter</a> &nbsp;&middot;&nbsp; Copyright &#169; 2006 &nbsp;&middot;&nbsp; <a href="http://www.pmachine.com">pMachine, Inc.</a></p>
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