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diff --git a/user_guide/general/errors.html b/user_guide/general/errors.html deleted file mode 100644 index 18e118c59..000000000 --- a/user_guide/general/errors.html +++ /dev/null @@ -1,649 +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>Error Handling — CodeIgniter 3.1.10 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 rel="search" title="Search" 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Helper</a></li> -<li class="toctree-l2"><a class="reference internal" href="../helpers/url_helper.html">URL Helper</a></li> -<li class="toctree-l2"><a class="reference internal" href="../helpers/xml_helper.html">XML Helper</a></li> -</ul> -</li> -</ul> - - - - </div> - - </nav> - - <section data-toggle="wy-nav-shift" class="wy-nav-content-wrap"> - - - <nav class="wy-nav-top" role="navigation" aria-label="top navigation"> - <i data-toggle="wy-nav-top" class="fa fa-bars"></i> - <a href="../index.html">CodeIgniter</a> - </nav> - - - - <div class="wy-nav-content"> - <div class="rst-content"> - <div role="navigation" aria-label="breadcrumbs navigation"> - <ul class="wy-breadcrumbs"> - <li><a href="../index.html">Docs</a> »</li> - - <li><a href="index.html">General Topics</a> »</li> - - <li>Error Handling</li> - <li class="wy-breadcrumbs-aside"> - - </li> - <div 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="error-handling"> -<h1>Error Handling<a class="headerlink" href="#error-handling" title="Permalink to this headline">¶</a></h1> -<p>CodeIgniter 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> -<div class="admonition note"> -<p class="first admonition-title">Note</p> -<p class="last">By default, CodeIgniter displays all PHP errors. You might -wish to change this behavior once your development is complete. You’ll -find the error_reporting() 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> -</div> -<p>Unlike most systems in CodeIgniter, 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>CodeIgniter also returns a status code whenever a portion of the core -calls <code class="docutils literal"><span class="pre">exit()</span></code>. This exit status code is separate from the HTTP status -code, and serves as a notice to other processes that may be watching of -whether the script completed successfully, or if not, what kind of -problem it encountered that caused it to abort. These values are -defined in <em>application/config/constants.php</em>. While exit status codes -are most useful in CLI settings, returning the proper code helps server -software keep track of your scripts and the health of your application.</p> -<p>The following functions let you generate errors:</p> -<dl class="function"> -<dt id="show_error"> -<code class="descname">show_error</code><span class="sig-paren">(</span><em>$message</em>, <em>$status_code</em>, <em>$heading = 'An Error Was Encountered'</em><span class="sig-paren">)</span><a class="headerlink" href="#show_error" title="Permalink to this definition">¶</a></dt> -<dd><table class="docutils field-list" frame="void" rules="none"> -<col class="field-name" /> -<col class="field-body" /> -<tbody valign="top"> -<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple"> -<li><strong>$message</strong> (<em>mixed</em>) – Error message</li> -<li><strong>$status_code</strong> (<em>int</em>) – HTTP Response status code</li> -<li><strong>$heading</strong> (<em>string</em>) – Error page heading</li> -</ul> -</td> -</tr> -<tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">void</p> -</td> -</tr> -</tbody> -</table> -<p>This function will display the error message supplied to it using -the error template appropriate to your execution:</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nx">application</span><span class="o">/</span><span class="nx">views</span><span class="o">/</span><span class="nx">errors</span><span class="o">/</span><span class="nx">html</span><span class="o">/</span><span class="nx">error_general</span><span class="o">.</span><span class="nx">php</span> -</pre></div> -</div> -<p>or:</p> -<blockquote> -<div>application/views/errors/cli/error_general.php</div></blockquote> -<p>The optional parameter <code class="docutils literal"><span class="pre">$status_code</span></code> determines what HTTP status -code should be sent with the error. If <code class="docutils literal"><span class="pre">$status_code</span></code> is less -than 100, the HTTP status code will be set to 500, and the exit -status code will be set to <code class="docutils literal"><span class="pre">$status_code</span> <span class="pre">+</span> <span class="pre">EXIT__AUTO_MIN</span></code>. -If that value is larger than <code class="docutils literal"><span class="pre">EXIT__AUTO_MAX</span></code>, or if -<code class="docutils literal"><span class="pre">$status_code</span></code> is 100 or higher, the exit status code will be set -to <code class="docutils literal"><span class="pre">EXIT_ERROR</span></code>. -You can check in <em>application/config/constants.php</em> for more detail.</p> -</dd></dl> - -<dl class="function"> -<dt id="show_404"> -<code class="descname">show_404</code><span class="sig-paren">(</span><em>$page = ''</em>, <em>$log_error = TRUE</em><span class="sig-paren">)</span><a class="headerlink" href="#show_404" title="Permalink to this definition">¶</a></dt> -<dd><table class="docutils field-list" frame="void" rules="none"> -<col class="field-name" /> -<col class="field-body" /> -<tbody valign="top"> -<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple"> -<li><strong>$page</strong> (<em>string</em>) – URI string</li> -<li><strong>$log_error</strong> (<em>bool</em>) – Whether to log the error</li> -</ul> -</td> -</tr> -<tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">void</p> -</td> -</tr> -</tbody> -</table> -<p>This function will display the 404 error message supplied to it -using the error template appropriate to your execution:</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nx">application</span><span class="o">/</span><span class="nx">views</span><span class="o">/</span><span class="nx">errors</span><span class="o">/</span><span class="nx">html</span><span class="o">/</span><span class="nx">error_404</span><span class="o">.</span><span class="nx">php</span> -</pre></div> -</div> -<p>or:</p> -<blockquote> -<div>application/views/errors/cli/error_404.php</div></blockquote> -<p>The function expects the string passed to it to be the file path to -the page that isn’t found. The exit status code will be set to -<code class="docutils literal"><span class="pre">EXIT_UNKNOWN_FILE</span></code>. -Note that CodeIgniter automatically shows 404 messages if -controllers are not found.</p> -<p>CodeIgniter automatically logs any <code class="docutils literal"><span class="pre">show_404()</span></code> calls. Setting the -optional second parameter to FALSE will skip logging.</p> -</dd></dl> - -<dl class="function"> -<dt id="log_message"> -<code class="descname">log_message</code><span class="sig-paren">(</span><em>$level</em>, <em>$message</em><span class="sig-paren">)</span><a class="headerlink" href="#log_message" title="Permalink to this definition">¶</a></dt> -<dd><table class="docutils field-list" frame="void" rules="none"> -<col class="field-name" /> -<col class="field-body" /> -<tbody valign="top"> -<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple"> -<li><strong>$level</strong> (<em>string</em>) – Log level: ‘error’, ‘debug’ or ‘info’</li> -<li><strong>$message</strong> (<em>string</em>) – Message to log</li> -</ul> -</td> -</tr> -<tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">void</p> -</td> -</tr> -</tbody> -</table> -<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.</p> -<p>Example:</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="k">if</span> <span class="p">(</span><span class="nv">$some_var</span> <span class="o">==</span> <span class="s1">''</span><span class="p">)</span> -<span class="p">{</span> - <span class="nx">log_message</span><span class="p">(</span><span class="s1">'error'</span><span class="p">,</span> <span class="s1">'Some variable did not contain a value.'</span><span class="p">);</span> -<span class="p">}</span> -<span class="k">else</span> -<span class="p">{</span> - <span class="nx">log_message</span><span class="p">(</span><span class="s1">'debug'</span><span class="p">,</span> <span class="s1">'Some variable was correctly set'</span><span class="p">);</span> -<span class="p">}</span> - -<span class="nx">log_message</span><span class="p">(</span><span class="s1">'info'</span><span class="p">,</span> <span class="s1">'The purpose of some variable is to provide some value.'</span><span class="p">);</span> -</pre></div> -</div> -<p>There are three message types:</p> -<ol class="arabic simple"> -<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.</li> -</ol> -<div class="admonition note"> -<p class="first admonition-title">Note</p> -<p class="last">In order for the log file to actually be written, the -<em>logs/</em> directory must be writable. In addition, you must -set the “threshold” for logging in -<em>application/config/config.php</em>. You might, for example, -only want error messages to be logged, and not the other -two types. If you set it to zero logging will be disabled.</p> -</div> -</dd></dl> - -</div> - - - </div> - <footer> - - <div class="rst-footer-buttons" role="navigation" aria-label="footer navigation"> - - <a href="caching.html" class="btn btn-neutral float-right" title="Web Page Caching">Next <span class="fa fa-arrow-circle-right"></span></a> - - - <a href="routing.html" class="btn btn-neutral" title="URI Routing"><span class="fa fa-arrow-circle-left"></span> Previous</a> - - </div> - - - <hr/> - - <div role="contentinfo"> - <p> - © Copyright 2014 - 2019, British Columbia Institute of Technology. - Last updated on Jan 16, 2019. - </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:'3.1.10', - 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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