<!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>Installation</title> </head> <body><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="datetime.requirements.html">Requirements</a></div> <div class="next" style="text-align: right; float: right;"><a href="datetime.configuration.html">Runtime Configuration</a></div> <div class="up"><a href="datetime.setup.html">Installing/Configuring</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div><hr /><div id="datetime.installation" class="section"> <h2 class="title">Installation</h2> <p class="para">There is no installation needed to use these functions; they are part of the PHP core.</p> <blockquote class="note"><p><strong class="note">Note</strong>: <strong>Getting the latest timezone database</strong><br /> <p class="para"> The latest version of the timezone database can be installed via PECL's <a href="http://pecl.php.net/get/timezonedb" class="link external">» timezonedb</a>. </p> </p></blockquote> <blockquote class="note"><p><strong class="note">Note</strong>: <strong>Experimental DateTime support in PHP 5.1.x</strong><br /> <p class="para"> Although the <a href="class.datetime.html" class="classname">DateTime</a> class (and related functions) are enabled by default since PHP 5.2.0, it is possible to add experimental support into PHP 5.1.x by using the following flag before configure/compile: <em>CFLAGS=-DEXPERIMENTAL_DATE_SUPPORT=1</em> </p> </p></blockquote> </div><hr /><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="datetime.requirements.html">Requirements</a></div> <div class="next" style="text-align: right; float: right;"><a href="datetime.configuration.html">Runtime Configuration</a></div> <div class="up"><a href="datetime.setup.html">Installing/Configuring</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div></body></html>
