<HTML ><HEAD ><TITLE >session_destroy</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.7"><LINK REL="HOME" TITLE="PHP Manual" HREF="index.html"><LINK REL="UP" TITLE="Session handling functions" HREF="ref.session.html"><LINK REL="PREVIOUS" TITLE="session_decode" HREF="function.session-decode.html"><LINK REL="NEXT" TITLE="session_encode" HREF="function.session-encode.html"><META HTTP-EQUIV="Content-type" CONTENT="text/html; charset=ISO-8859-1"></HEAD ><BODY CLASS="refentry" BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#840084" ALINK="#0000FF" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >PHP Manual</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="function.session-decode.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="function.session-encode.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.session-destroy" ></A >session_destroy</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN84402" ></A ><P > (PHP 4 )</P >session_destroy -- Destroys all data registered to a session</DIV ><DIV CLASS="refsect1" ><A NAME="AEN84405" ></A ><H2 >Description</H2 >bool <B CLASS="methodname" >session_destroy</B > ( void)<BR ></BR ><P > <B CLASS="function" >session_destroy()</B > destroys all of the data associated with the current session. It does not unset any of the global variables associated with the session, or unset the session cookie. </P ><P > This function returns <TT CLASS="constant" ><B >TRUE</B ></TT > on success and <TT CLASS="constant" ><B >FALSE</B ></TT > on failure to destroy the session data. </P ><P > <TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" CLASS="EXAMPLE" ><TR ><TD ><DIV CLASS="example" ><A NAME="AEN84417" ></A ><P ><B >Example 1. Destroying a session</B ></P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><PRE CLASS="php" ><?php // Initialize the session. // If you are using session_name("something"), don't forget it now! session_start(); // Unset all of the session variables. session_unset(); // Finally, destroy the session. session_destroy(); ?></PRE ></TD ></TR ></TABLE ></DIV ></TD ></TR ></TABLE > </P ><P > <TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" CLASS="EXAMPLE" ><TR ><TD ><DIV CLASS="example" ><A NAME="AEN84421" ></A ><P ><B >Example 2. Destroying a session with $_SESSION</B ></P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><PRE CLASS="php" ><?php // Initialize the session. // If you are using session_name("something"), don't forget it now! session_start(); // Unset all of the session variables. $_SESSION = array(); // Finally, destroy the session. session_destroy(); ?></PRE ></TD ></TR ></TABLE ></DIV ></TD ></TR ></TABLE > </P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="function.session-decode.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="function.session-encode.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >session_decode</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.session.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >session_encode</TD ></TR ></TABLE ></DIV ></BODY ></HTML >