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Completed move of language.variables.superglobals to variables/superglobals.xml
And linked to the new register_globals FAQ. git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@257949 c90b9560-bf6c-de11-be94-00142212c4b1
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<?xml version="1.0" encoding="utf-8"?>
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<!-- $Revision: 1.2 $ -->
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<!-- $Revision: 1.3 $ -->
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<reference xml:id="reserved.variables" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
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<title>Predefined variables</title>
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<partintro>
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<para>
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PHP provides a large number of predefined variables to any script. The
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PHP provides a large number of predefined variables to all scripts. The
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variables represent everything from
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<link linkend="language.variables.external">external variables</link> to
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built-in environment variables, last error messages to last retrieved
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headers.
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</para>
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<section xml:id="language.variables.superglobals">
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<title>Superglobals</title>
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<para>
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Superglobals are built-in variables that are always available in all scopes.
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These variables are:
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<simplelist>
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<member><varname>$GLOBALS</varname></member>
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<member><varname>$_SERVER</varname></member>
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<member><varname>$_GET</varname></member>
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<member><varname>$_POST</varname></member>
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<member><varname>$_FILES</varname></member>
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<member><varname>$_COOKIE</varname></member>
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<member><varname>$_SESSION</varname></member>
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<member><varname>$_REQUEST</varname></member>
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<member><varname>$_ENV</varname></member>
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</simplelist>
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</para>
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<note>
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<simpara>
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Superglobals cannot be used as
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<link linkend="language.variables.variable">variable variables</link>
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inside functions or class methods.
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</simpara>
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</note>
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</section>
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<para>
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See also the FAQ titled
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"<link linkend="faq.register-globals">How does register_globals affect me?</link>"
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</para>
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</partintro>
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&language.predefined.variables.superglobals;
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&language.predefined.variables.globals;
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&language.predefined.variables.server;
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&language.predefined.variables.get;
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