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<?xml version="1.0" encoding="ISO-8859-1"?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"><head><!-- XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX This file is generated from xml source: DO NOT EDIT XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX --><title>mod_version - Apache HTTP Server</title><link href="../style/css/manual.css" rel="stylesheet" media="all" type="text/css" title="Main stylesheet" /><link href="../style/css/manual-loose-100pc.css" rel="alternate stylesheet" media="all" type="text/css" title="No Sidebar - Default font size" /><link href="../style/css/manual-print.css" rel="stylesheet" media="print" type="text/css" /><link href="../images/favicon.ico" rel="shortcut icon" /></head><body><div id="page-header"><p class="menu"><a href="../mod/">Modules</a> | <a href="../mod/directives.html">Directives</a> | <a href="../faq/">FAQ</a> | <a href="../glossary.html">Glossary</a> | <a href="../sitemap.html">Sitemap</a></p><p class="apache">Apache HTTP Server Version 2.0</p><img alt="" src="../images/feather.gif" /></div><div class="up"><a href="./"><img title="<-" alt="<-" src="../images/left.gif" /></a></div><div id="path"><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 2.0</a> > <a href="./">Modules</a></div><div id="page-content"><div id="preamble"><h1>Apache Module mod_version</h1><div class="toplang"><p><span>Available Languages: </span><a href="../en/mod/mod_version.html" title="English"> en </a> |<a href="../ja/mod/mod_version.html" hreflang="ja" rel="alternate" title="Japanese"> ja </a> |<a href="../ko/mod/mod_version.html" hreflang="ko" rel="alternate" title="Korean"> ko </a></p></div><table class="module"><tr><th><a href="module-dict.html#Description">Description:</a></th><td>Version dependent configuration</td></tr><tr><th><a href="module-dict.html#Status">Status:</a></th><td>Extension</td></tr><tr><th><a href="module-dict.html#ModuleIdentifier">Module營dentifier:</a></th><td>version_module</td></tr><tr><th><a href="module-dict.html#SourceFile">Source燜ile:</a></th><td>mod_version.c</td></tr><tr><th><a href="module-dict.html#Compatibility">Compatibility:</a></th><td>Available in version 2.0.56 and later</td></tr></table><h3>Summary</h3> <p>This module is designed for the use in test suites and large networks which have to deal with different httpd versions and different configurations. It provides a new container -- <code class="directive"><a href="#ifversion"><IfVersion></a></code>, which allows a flexible version checking including numeric comparisons and regular expressions.</p> <div class="example"><h3>Examples</h3><p><code> <IfVersion 2.1.0><br /> <span class="indent"> # current httpd version is exactly 2.1.0<br /> </span> </IfVersion><br /> <br /> <IfVersion >= 2.2><br /> <span class="indent"> # use really new features :-)<br /> </span> </IfVersion> </code></p></div> <p>See below for further possibilities.</p></div><div id="quickview"><h3 class="directives">Directives</h3><ul id="toc"><li><img alt="" src="../images/down.gif" /> <a href="#ifversion"><IfVersion></a></li></ul></div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div><div class="directive-section"><h2><a name="IfVersion" id="IfVersion"><IfVersion></a> <a name="ifversion" id="ifversion">Directive</a></h2><table class="directive"><tr><th><a href="directive-dict.html#Description">Description:</a></th><td>contains version dependent configuration</td></tr><tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code><IfVersion [[!]<var>operator</var>] <var>version</var>> ...</IfVersion></code></td></tr><tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory, .htaccess</td></tr><tr><th><a href="directive-dict.html#Override">Override:</a></th><td>All</td></tr><tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Extension</td></tr><tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_version</td></tr></table> <p>The <code class="directive"><IfVersion></code> section encloses configuration directives which are executed only if the <code class="program"><a href="../programs/httpd.html">httpd</a></code> version matches the desired criteria. For normal (numeric) comparisons the <var>version</var> argument has the format <code><var>major</var>[.<var>minor</var>[.<var>patch</var>]]</code>, e.g. <code>2.1.0</code> or <code>2.2</code>. <var>minor</var> and <var>patch</var> are optional. If these numbers are omitted, they are assumed to be zero. The following numerical <var>operator</var>s are possible:</p> <table class="bordered"><tr class="header"><th><var>operator</var></th><th>description</th></tr><tr><td><code>=</code> or <code>==</code></td> <td>httpd version is equal</td></tr><tr class="odd"><td><code>></code></td> <td>httpd version is greater than</td></tr><tr><td><code>>=</code></td> <td>httpd version is greater or equal</td></tr><tr class="odd"><td><code><</code></td> <td>httpd version is less than</td></tr><tr><td><code><=</code></td> <td>httpd version is less or equal</td></tr></table> <div class="example"><h3>Example</h3><p><code> <IfVersion >= 2.1><br /> <span class="indent"> # this happens only in versions greater or<br /> # equal 2.1.0.<br /> </span> </IfVersion> </code></p></div> <p>Besides the numerical comparison it is possible to match a regular expression against the httpd version. There are two ways to write it:</p> <table class="bordered"><tr class="header"><th><var>operator</var></th><th>description</th></tr><tr><td><code>=</code> or <code>==</code></td> <td><var>version</var> has the form <code>/<var>regex</var>/</code></td></tr><tr class="odd"><td><code>~</code></td> <td><var>version</var> has the form <code><var>regex</var></code></td></tr></table> <div class="example"><h3>Example</h3><p><code> <IfVersion = /^2.1.[01234]$/><br /> <span class="indent"> # e.g. workaround for buggy versions </span> </IfVersion> </code></p></div> <p>In order to reverse the meaning, all operators can be preceded by an exclamation mark (<code>!</code>):</p> <div class="example"><p><code> <IfVersion !~ ^2.1.[01234]$><br /> <span class="indent"> # not for those versions<br /> </span> </IfVersion> </code></p></div> <p>If the <var>operator</var> is omitted, it is assumed to be <code>=</code>.</p></div></div><div class="bottomlang"><p><span>Available Languages: </span><a href="../en/mod/mod_version.html" title="English"> en </a> |<a href="../ja/mod/mod_version.html" hreflang="ja" rel="alternate" title="Japanese"> ja </a> |<a href="../ko/mod/mod_version.html" hreflang="ko" rel="alternate" title="Korean"> ko </a></p></div><div id="footer"><p class="apache">Copyright 2007 The Apache Software Foundation.<br />Licensed under the <a href="http://www.apache.org/licenses/LICENSE-2.0">Apache License, Version 2.0</a>.</p><p class="menu"><a href="../mod/">Modules</a> | <a href="../mod/directives.html">Directives</a> | <a href="../faq/">FAQ</a> | <a href="../glossary.html">Glossary</a> | <a href="../sitemap.html">Sitemap</a></p></div></body></html>⌨️ 快捷键说明
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