📄 function.session-regenerate-id.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>Update the current session id with a newly generated one</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.session-name.html">session_name</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.session-register.html">session_register</a></div> <div class="up"><a href="ref.session.html">Session Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="function.session-regenerate-id" class="refentry"> <div class="refnamediv"> <h1 class="refname">session_regenerate_id</h1> <p class="verinfo">(PHP 4 >= 4.3.2, PHP 5)</p><p class="refpurpose"><span class="refname">session_regenerate_id</span> — <span class="dc-title"> Update the current session id with a newly generated one </span></p> </div> <div class="refsect1 description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">bool</span> <span class="methodname"><b><b>session_regenerate_id</b></b></span> ([ <span class="methodparam"><span class="type">bool</span> <tt class="parameter">$delete_old_session</tt></span> ] )</div> <p class="para rdfs-comment"> <b>session_regenerate_id()</b> will replace the current session id with a new one, and keep the current session information. </p> </div> <div class="refsect1 parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><i><tt class="parameter">delete_old_session</tt></i></span> <dd> <p class="para"> Whether to delete the old associated session file or not. Defaults to <b><tt>FALSE</tt></b>. </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Returns <b><tt>TRUE</tt></b> on success or <b><tt>FALSE</tt></b> on failure. </p> </div> <div class="refsect1 changelog"> <h3 class="title">ChangeLog</h3> <p class="para"> <table class="informaltable"> <colgroup> <thead valign="middle"> <tr valign="middle"> <th colspan="1">Version</th> <th colspan="1">Description</th> </tr> </thead> <tbody valign="middle" class="tbody"> <tr valign="middle"> <td colspan="1" rowspan="1" align="left">4.3.3</td> <td colspan="1" rowspan="1" align="left"> Since then, if session cookies are enabled, use of <b>session_regenerate_id()</b> will also submit a new session cookie with the new session id. </td> </tr> <tr valign="middle"> <td colspan="1" rowspan="1" align="left">5.1.0</td> <td colspan="1" rowspan="1" align="left"> Added the <i><tt class="parameter">delete_old_session</tt></i> parameter. </td> </tr> </tbody> </colgroup> </table> </p> </div> <div class="refsect1 examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example"> <p><b>Example #1 A <b>session_regenerate_id()</b> example</b></p> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php<br />session_start</span><span style="color: #007700">();<br /><br /></span><span style="color: #0000BB">$old_sessionid </span><span style="color: #007700">= </span><span style="color: #0000BB">session_id</span><span style="color: #007700">();<br /><br /></span><span style="color: #0000BB">session_regenerate_id</span><span style="color: #007700">();<br /><br /></span><span style="color: #0000BB">$new_sessionid </span><span style="color: #007700">= </span><span style="color: #0000BB">session_id</span><span style="color: #007700">();<br /><br />echo </span><span style="color: #DD0000">"Old Session: $old_sessionid<br />"</span><span style="color: #007700">;<br />echo </span><span style="color: #DD0000">"New Session: $new_sessionid<br />"</span><span style="color: #007700">;<br /><br /></span><span style="color: #0000BB">print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">$_SESSION</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span></span></code></div> </div> </div> </p> </div> <div class="refsect1 seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"><a href="function.session-id.html" class="function" rel="rdfs-seeAlso">session_id()</a></li> <li class="member"><a href="function.session-start.html" class="function" rel="rdfs-seeAlso">session_start()</a></li> <li class="member"><a href="function.session-name.html" class="function" rel="rdfs-seeAlso">session_name()</a></li> </ul> </p> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.session-name.html">session_name</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.session-register.html">session_register</a></div> <div class="up"><a href="ref.session.html">Session 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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