📄 function.get-cfg-var.html
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html> <head> <title>Gets the value of a PHP configuration option</title> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> </head> <body><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.extension-loaded.html">extension_loaded</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.get-current-user.html">get_current_user</a></div> <div class="up"><a href="ref.info.html">PHP Options/Info Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="function.get-cfg-var" class="refentry"> <div class="refnamediv"> <h1 class="refname">get_cfg_var</h1> <p class="verinfo">(PHP 4, PHP 5)</p><p class="refpurpose"><span class="refname">get_cfg_var</span> — <span class="dc-title">Gets the value of a PHP configuration option</span></p> </div> <div class="refsect1 description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">string</span> <span class="methodname"><b><b>get_cfg_var</b></b></span> ( <span class="methodparam"><span class="type">string</span> <tt class="parameter">$option</tt></span> )</div> <p class="para rdfs-comment"> Gets the value of a PHP configuration <i><tt class="parameter">option</tt></i>. </p> <p class="para"> This function will not return configuration information set when the PHP was compiled, or read from an Apache configuration file. </p> <p class="para"> To check whether the system is using a <a href="configuration.html#configuration.file" class="link">configuration file</a>, try retrieving the value of the cfg_file_path configuration setting. If this is available, a configuration file is being used. </p> </div> <div class="refsect1 parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><i><tt class="parameter">option</tt></i></span> <dd> <p class="para"> The configuration option name. </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Returns the current value of the PHP configuration variable specified by <i><tt class="parameter">varname</tt></i>, or <b><tt>FALSE</tt></b> if an error occurs. </p> </div> <div class="refsect1 seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"><a href="function.ini-get.html" class="function" rel="rdfs-seeAlso">ini_get()</a></li> <li class="member"><a href="function.ini-get-all.html" class="function" rel="rdfs-seeAlso">ini_get_all()</a></li> </ul> </p> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.extension-loaded.html">extension_loaded</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.get-current-user.html">get_current_user</a></div> <div class="up"><a href="ref.info.html">PHP Options/Info Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div></body></html>⌨️ 快捷键说明
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