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Document session auto_start object restriction

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git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@121284 c90b9560-bf6c-de11-be94-00142212c4b1
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Rasmus Lerdorf 2003-03-26 07:53:08 +00:00
parent e936aa7f41
commit 4f820df326
1 changed files with 13 additions and 3 deletions
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16
reference/session/reference.xml
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@ -1,5 +1,5 @@
<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.30 $ -->
<!-- $Revision: 1.31 $ -->
<reference id="ref.session">
<title>Session handling functions</title>
<titleabbrev>Sessions</titleabbrev>
@ -26,13 +26,23 @@
<para>
The session support allows you to register arbitrary numbers of
variables to be preserved across requests. When a visitor accesses
your site, PHP will check automatically (if session.auto_start is
set to 1) or on your request (explicitly through
your site, PHP will check automatically (if <link
linkend="ini.session.auto_start"><literal>session.auto_start</literal></link>
is set to 1) or on your request (explicitly through
<function>session_start</function> or implicitly through
<function>session_register</function>) whether a specific session
id has been sent with the request. If this is the case, the prior
saved environment is recreated.
</para>
<caution>
<para>
If you do turn on <link linkend="ini.session.auto_start">
<literal>session.auto_start</literal></link> then you cannot put
objects into your sessions since the class definition has to be
loaded before starting the session in order to recreate the
objects in your session.
</para>
</caution>
<para>
All registered variables are serialized after the request
finishes. Registered variables which are undefined are marked as