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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>Installation</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="session.setup.html">Installing/Configuring</a></div> <div class="next" style="text-align: right; float: right;"><a href="session.configuration.html">Runtime Configuration</a></div> <div class="up"><a href="session.setup.html">Installing/Configuring</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="session.installation" class="section"> <h2 class="title">Installation</h2> <p class="para"> Session support is enabled in PHP by default. If you would not like to build your PHP with session support, you should specify the <span class="option">--disable-session</span> option to configure. To use shared memory allocation (mm) for session storage configure PHP <span class="option">--with-mm[=DIR] </span>. </p> <p class="simpara">The Windows version of PHP has built-insupport for this extension. You do not need to load any additionalextensions in order to use these functions.</p> <blockquote><p><b class="note">Note</b>: By default, all data related to a particular session will be stored in a file in the directory specified by the session.save_path INI option. A file for each session (regardless of if any data is associated with that session) will be created. This is due to the fact that a session is opened (a file is created) but no data is even written to that file. Note that this behavior is a side-effect of the limitations of working with the file system and it is possible that a custom session handler (such as one which uses a database) does not keep track of sessions which store no data. <br /> </p></blockquote> </div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="session.setup.html">Installing/Configuring</a></div> <div class="next" style="text-align: right; float: right;"><a href="session.configuration.html">Runtime Configuration</a></div> <div class="up"><a href="session.setup.html">Installing/Configuring</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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