function.phpversion.html
来自「php的帮助文档,涉及到PHP的案例和基本语法,以及实际应用内容」· HTML 代码 · 共 118 行
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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 current PHP version</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.phpinfo.html">phpinfo</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.putenv.html">putenv</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.phpversion" class="refentry"> <div class="refnamediv"> <h1 class="refname">phpversion</h1> <p class="verinfo">(PHP 4, PHP 5)</p><p class="refpurpose"><span class="refname">phpversion</span> — <span class="dc-title">Gets the current PHP version</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>phpversion</b></b></span> ([ <span class="methodparam"><span class="type">string</span> <tt class="parameter">$extension</tt></span> ] )</div> <p class="para rdfs-comment"> Returns a string containing the version of the currently running PHP parser or extension. </p> </div> <div class="refsect1 parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><i><tt class="parameter">extension</tt></i></span> <dd> <p class="para"> An optional extension name. </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> If the optional <i><tt class="parameter">extension</tt></i> parameter is specified, <b>phpversion()</b> returns the version of that extension, or <b><tt>FALSE</tt></b> if there is no version information associated or the extension isn't enabled. </p> </div> <div class="refsect1 examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example"> <p><b>Example #1 <b>phpversion()</b> example</b></p> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php<br /></span><span style="color: #FF8000">// prints e.g. 'Current PHP version: 4.1.1'<br /></span><span style="color: #007700">echo </span><span style="color: #DD0000">'Current PHP version: ' </span><span style="color: #007700">. </span><span style="color: #0000BB">phpversion</span><span style="color: #007700">();<br /><br /></span><span style="color: #FF8000">// prints e.g. '2.0' or nothing if the extension isn't enabled<br /></span><span style="color: #007700">echo </span><span style="color: #0000BB">phpversion</span><span style="color: #007700">(</span><span style="color: #DD0000">'tidy'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span></span></code></div> </div> </div> </p> </div> <div class="refsect1 notes"> <h3 class="title">Notes</h3> <blockquote><p><b class="note">Note</b>: This information is also available in the predefined constant <b><tt>PHP_VERSION</tt></b>. <br /> </p></blockquote> </div> <div class="refsect1 seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"><a href="function.version-compare.html" class="function" rel="rdfs-seeAlso">version_compare()</a></li> <li class="member"><a href="function.phpinfo.html" class="function" rel="rdfs-seeAlso">phpinfo()</a></li> <li class="member"><a href="function.phpcredits.html" class="function" rel="rdfs-seeAlso">phpcredits()</a></li> <li class="member"><a href="function.php-logo-guid.html" class="function" rel="rdfs-seeAlso">php_logo_guid()</a></li> <li class="member"><a href="function.zend-version.html" class="function" rel="rdfs-seeAlso">zend_version()</a></li> </ul> </p> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.phpinfo.html">phpinfo</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.putenv.html">putenv</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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