1<?xml version="1.0" encoding="ISO-8859-1"?> 2<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> 3<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"><head><!-- 4 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX 5 This file is generated from xml source: DO NOT EDIT 6 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX 7 --> 8<title>mod_version - Apache HTTP Server</title> 9<link href="/style/css/manual.css" rel="stylesheet" media="all" type="text/css" title="Main stylesheet" /> 10<link href="/style/css/manual-loose-100pc.css" rel="alternate stylesheet" media="all" type="text/css" title="No Sidebar - Default font size" /> 11<link href="/style/css/manual-print.css" rel="stylesheet" media="print" type="text/css" /><link rel="stylesheet" type="text/css" href="/style/css/prettify.css" /> 12<script src="/style/scripts/prettify.min.js" type="text/javascript"> 13</script> 14 15<link href="/images/favicon.ico" rel="shortcut icon" /></head> 16<body> 17<div id="page-header"> 18<p class="menu"><a href="/mod/">Modules</a> | <a href="/mod/directives.html">Directives</a> | <a href="http://wiki.apache.org/httpd/FAQ">FAQ</a> | <a href="/glossary.html">Glossary</a> | <a href="/sitemap.html">Sitemap</a></p> 19<p class="apache">Apache HTTP Server Version 2.4</p> 20<img alt="" src="/images/feather.gif" /></div> 21<div class="up"><a href="./"><img title="<-" alt="<-" src="/images/left.gif" /></a></div> 22<div id="path"> 23<a href="http://www.apache.org/">Apache</a> > <a href="http://httpd.apache.org/">HTTP Server</a> > <a href="http://httpd.apache.org/docs/">Documentation</a> > <a href="../">Version 2.4</a> > <a href="./">Modules</a></div> 24<div id="page-content"> 25<div id="preamble"><h1>Apache Module mod_version</h1> 26<div class="toplang"> 27<p><span>Available Languages: </span><a href="/en/mod/mod_version.html" title="English"> en </a> | 28<a href="/ja/mod/mod_version.html" hreflang="ja" rel="alternate" title="Japanese"> ja </a> | 29<a href="/ko/mod/mod_version.html" hreflang="ko" rel="alternate" title="Korean"> ko </a></p> 30</div> 31<table class="module"><tr><th><a href="module-dict.html#Description">Description:</a></th><td>Version dependent configuration</td></tr> 32<tr><th><a href="module-dict.html#Status">Status:</a></th><td>Extension</td></tr> 33<tr><th><a href="module-dict.html#ModuleIdentifier">Module�Identifier:</a></th><td>version_module</td></tr> 34<tr><th><a href="module-dict.html#SourceFile">Source�File:</a></th><td>mod_version.c</td></tr></table> 35<h3>Summary</h3> 36 37 <p>This module is designed for the use in test suites and large 38 networks which have to deal with different httpd versions and 39 different configurations. It provides a new container -- <code class="directive"><a href="#ifversion"><IfVersion></a></code>, which 40 allows a flexible version checking including numeric comparisons and 41 regular expressions.</p> 42 43 <div class="example"><h3>Examples</h3><pre class="prettyprint lang-config"><IfVersion 2.4.2> 44 # current httpd version is exactly 2.4.2 45</IfVersion> 46 47<IfVersion >= 2.5> 48 # use really new features :-) 49</IfVersion></pre> 50</div> 51 52 <p>See below for further possibilities.</p> 53</div> 54<div id="quickview"><h3 class="directives">Directives</h3> 55<ul id="toc"> 56<li><img alt="" src="/images/down.gif" /> <a href="#ifversion"><IfVersion></a></li> 57</ul> 58<ul class="seealso"><li><a href="#comments_section">Comments</a></li></ul></div> 59 60<div class="top"><a href="#page-header"><img alt="top" src="/images/up.gif" /></a></div> 61<div class="directive-section"><h2><a name="IfVersion" id="IfVersion"><IfVersion></a> <a name="ifversion" id="ifversion">Directive</a></h2> 62<table class="directive"> 63<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>contains version dependent configuration</td></tr> 64<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code><IfVersion [[!]<var>operator</var>] <var>version</var>> ... 65</IfVersion></code></td></tr> 66<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory, .htaccess</td></tr> 67<tr><th><a href="directive-dict.html#Override">Override:</a></th><td>All</td></tr> 68<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Extension</td></tr> 69<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_version</td></tr> 70</table> 71 <p>The <code class="directive"><IfVersion></code> section encloses 72 configuration directives which are executed only if the 73 <code class="program"><a href="/programs/httpd.html">httpd</a></code> version 74 matches the desired criteria. For normal (numeric) comparisons the 75 <var>version</var> argument has the format 76 <code><var>major</var>[.<var>minor</var>[.<var>patch</var>]]</code>, e.g. 77 <code>2.1.0</code> or <code>2.2</code>. <var>minor</var> and 78 <var>patch</var> are optional. If these numbers are omitted, they are 79 assumed to be zero. The following numerical <var>operator</var>s are 80 possible:</p> 81 82 <table class="bordered"><tr class="header"><th><var>operator</var></th><th>description</th></tr> 83<tr><td><code>=</code> or <code>==</code></td> 84 <td>httpd version is equal</td></tr> 85<tr class="odd"><td><code>></code></td> 86 <td>httpd version is greater than</td></tr> 87<tr><td><code>>=</code></td> 88 <td>httpd version is greater or equal</td></tr> 89<tr class="odd"><td><code><</code></td> 90 <td>httpd version is less than</td></tr> 91<tr><td><code><=</code></td> 92 <td>httpd version is less or equal</td></tr> 93</table> 94 95 <div class="example"><h3>Example</h3><pre class="prettyprint lang-config"><IfVersion >= 2.3> 96 # this happens only in versions greater or 97 # equal 2.3.0. 98</IfVersion></pre> 99</div> 100 101 <p>Besides the numerical comparison it is possible to match a 102 <a class="glossarylink" href="/glossary.html#regex" title="see glossary">regular expression</a> 103 against the httpd version. There are two ways to write it:</p> 104 105 <table class="bordered"><tr class="header"><th><var>operator</var></th><th>description</th></tr> 106<tr><td><code>=</code> or <code>==</code></td> 107 <td><var>version</var> has the form 108 <code>/<var>regex</var>/</code></td></tr> 109<tr class="odd"><td><code>~</code></td> 110 <td><var>version</var> has the form 111 <code><var>regex</var></code></td></tr> 112</table> 113 114 <div class="example"><h3>Example</h3><pre class="prettyprint lang-config"><IfVersion = /^2.4.[01234]$/> 115 # e.g. workaround for buggy versions 116</IfVersion></pre> 117</div> 118 119 <p>In order to reverse the meaning, all operators can be preceded by an 120 exclamation mark (<code>!</code>):</p> 121 122 <pre class="prettyprint lang-config"><IfVersion !~ ^2.4.[01234]$> 123 # not for those versions 124</IfVersion></pre> 125 126 127 <p>If the <var>operator</var> is omitted, it is assumed to be 128 <code>=</code>.</p> 129 130</div> 131</div> 132<div class="bottomlang"> 133<p><span>Available Languages: </span><a href="/en/mod/mod_version.html" title="English"> en </a> | 134<a href="/ja/mod/mod_version.html" hreflang="ja" rel="alternate" title="Japanese"> ja </a> | 135<a href="/ko/mod/mod_version.html" hreflang="ko" rel="alternate" title="Korean"> ko </a></p> 136</div><div class="top"><a href="#page-header"><img src="/images/up.gif" alt="top" /></a></div><div class="section"><h2><a id="comments_section" name="comments_section">Comments</a></h2><div class="warning"><strong>Notice:</strong><br />This is not a Q&A section. 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