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diff --git a/user_guide/general/errors.html b/user_guide/general/errors.html new file mode 100644 index 000000000..60acbfe1f --- /dev/null +++ b/user_guide/general/errors.html @@ -0,0 +1,142 @@ +<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+<html>
+<head>
+
+<title>Code Igniter 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="../scripts/nav.js"></script>
+<script type="text/javascript" src="../scripts/prototype.lite.js"></script>
+<script type="text/javascript" src="../scripts/moo.fx.js"></script>
+<script type="text/javascript">
+window.onload = function() {
+ myHeight = new fx.Height('nav', {duration: 400});
+ myHeight.hide();
+}
+</script>
+
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+<meta http-equiv='expires' content='-1' />
+<meta http-equiv= 'pragma' content='no-cache' />
+<meta name='robots' content='all' />
+<meta name='author' content='Rick Ellis' />
+<meta name='description' content='Code Igniter 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.jpg" width="153" height="44" 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>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>
+<!-- END NAVIGATION -->
+
+
+<!-- START BREADCRUMB -->
+<table cellpadding="0" cellspacing="0" border="0" style="width:100%">
+<tr>
+<td id="breadcrumb">
+<a href="http://www.codeigniter.com/">Code Igniter Home</a> ›
+<a href="../index.html">User Guide Home</a> ›
+Error Handling
+</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 <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>Error Handling</h1>
+
+<p>Code Igniter lets you build error reporting into your applications using the functions described below.
+In addition, it has an error logging class that permits error and debugging messages to be saved as text files.</p>
+
+<p class="important"><strong>Note:</strong> By default, Code Igniter displays all PHP errors. You might
+wish to change this behavior once your development is complete. You'll find the <dfn>error_reporting()</dfn>
+function located at the top of your main index.php file. Disabling error reporting will NOT prevent log files
+from being written if there are errors.</p>
+
+<p>Unlike most systems in Code Igniter, the error functions are simple procedural interfaces that are available
+globally throughout the application. This approach permits error messages to get triggered without having to worry
+about class/function scoping.</p>
+
+<p>The following functions let you generate errors:</p>
+
+<h2>show_error('<var>message</var>')</h2>
+<p>This function will display the error message supplied to it using the following error template:</p>
+<p><dfn>application/errors/</dfn><kbd>error_general.php</kbd></p>
+
+<h2>show_404('<var>page</var>')</h2>
+<p>This function will display the 404 error message supplied to it using the following error template:</p>
+<p><dfn>application/errors/</dfn><kbd>error_404.php</kbd></p>
+
+<p>The function expects the string passed to it to be the file path to the page that isn't found.
+Note that Code Igniter automatically shows 404 messages if controllers are not found.</p>
+
+
+<h2>log_message('<var>level</var>', '<samp>message</samp>')</h2>
+
+<p>This function lets you write messages to your log files. You must supply one of three "levels"
+in the first parameter, indicating what type of message it is (debug, error, info), with the message
+itself in the second parameter. Example:</p>
+
+<code>
+if ($some_var == "")<br />
+{<br />
+ log_message('error', 'Some variable did not contain a value.');<br />
+}<br />
+else<br />
+{<br />
+ log_message('debug', 'Some variable was correctly set');<br />
+}<br />
+<br />
+log_message('info', 'The purpose of some variable is to provide some value.');<br />
+</code>
+
+<p>There are three message types:</p>
+
+<ol>
+<li>Error Messages. These are actual errors, such as PHP errors or user errors.</li>
+<li>Debug Messages. These are messages that assist in debugging. For example, if a class has been initialized, you could log this as debugging info.</li>
+<li>Informational Messages. These are the lowest priority messages, simply giving information regarding some process. Code Igniter doesn't natively generate any info messsages but you may want to in your application.</li>
+</ol>
+
+
+<p class="important"><strong>Note:</strong> In order for the log file to actually be written, the "log_errors"
+option must be enabled in your <kbd>application/config/config.php</kbd> file, and the "logs" folder must be writable.
+In addition, you'll can set the "threshold" for logging.
+You might, for example, only want error messages to be logged, and not the other two types.</p>
+
+
+
+</div>
+<!-- END CONTENT -->
+
+
+<div id="footer">
+<p>
+Previous Topic: <a href="routing.html">URI Routing</a>
+ ·
+<a href="#top">Top of Page</a> ·
+<a href="../index.html">User Guide Home</a> ·
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+<p>
+<p><a href="http://www.codeigniter.com">Code Igniter</a> · Copyright © 2006 · <a href="http://www.pmachine.com">pMachine, Inc.</a></p>
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+
+</body>
+</html>
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