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Adding text to explaing bug #17122 on session variable names
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@98100 c90b9560-bf6c-de11-be94-00142212c4b1
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<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.15 $ -->
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<!-- $Revision: 1.16 $ -->
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<reference id="ref.session">
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<title>Session handling functions</title>
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<titleabbrev>Sessions</titleabbrev>
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@ -120,6 +120,14 @@
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substitute <varname>$HTTP_SESSION_VARS</varname> for
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<varname>$_SESSION</varname>, if you prefer the former.
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</para>
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<para>
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The keys in the <varname>$_SESSION</varname> associative
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array are subject to the
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same limitations as regular variable names in PHP, i.e. they cannot
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start with a number and must start with a letter or underscore.
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For more details see the section on
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<link linkend='language.variables'>variables</link> in this manual.
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</para>
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</note>
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<para>
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