<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <title>Introduction</title> </head> <body><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="book.opcache.html">OPcache</a></div> <div class="next" style="text-align: right; float: right;"><a href="opcache.setup.html">Installing/Configuring</a></div> <div class="up"><a href="book.opcache.html">OPcache</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div><hr /><div id="intro.opcache" class="preface"> <h1 class="title">Introduction</h1> <p class="para"> OPcache improves PHP performance by storing precompiled script bytecode in shared memory, thereby removing the need for PHP to load and parse scripts on each request. </p> <p class="para"> This extension is bundled with PHP 5.5.0 and later, and is <a href="http://pecl.php.net/package/ZendOpcache" class="link external">» available in PECL</a> for PHP versions 5.2, 5.3 and 5.4. </p> </div><hr /><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="book.opcache.html">OPcache</a></div> <div class="next" style="text-align: right; float: right;"><a href="opcache.setup.html">Installing/Configuring</a></div> <div class="up"><a href="book.opcache.html">OPcache</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div></body></html>
