1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
|
<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision: 288721 $ -->
<phpdoc:varentry xmlns:phpdoc="http://php.net/ns/phpdoc" xml:id="reserved.variables.globals" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" role="noversion">
<refnamediv>
<refname>$GLOBALS</refname>
<refpurpose>References all variables available in global scope</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<para>
An associative <type>array</type> containing references to all variables which
are currently defined in the global scope of the script. The
variable names are the keys of the array.
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example xml:id="variable.globals.basic">
<title><varname>$GLOBALS</varname> example</title>
<programlisting role="php">
<![CDATA[
<?php
function test() {
$foo = "local variable";
echo '$foo in global scope: ' . $GLOBALS["foo"] . "\n";
echo '$foo in current scope: ' . $foo . "\n";
}
$foo = "Example content";
test();
?>
]]>
</programlisting>
&example.outputs.similar;
<screen>
<![CDATA[
$foo in global scope: Example content
$foo in current scope: local variable
]]>
</screen>
</example>
</para>
</refsect1>
<refsect1 role="notes">
&reftitle.notes;
¬e.is-superglobal;
<note>
<title>Variable availability</title>
<para>
Unlike all of the other <link linkend="language.variables.superglobals">superglobals</link>,
<varname>$GLOBALS</varname> has essentially always been available in PHP.
</para>
</note>
</refsect1>
</phpdoc:varentry>
<!-- Keep this comment at the end of the file
Local variables:
mode: sgml
sgml-omittag:t
sgml-shorttag:t
sgml-minimize-attributes:nil
sgml-always-quote-attributes:t
sgml-indent-step:1
sgml-indent-data:t
indent-tabs-mode:nil
sgml-parent-document:nil
sgml-default-dtd-file:"~/.phpdoc/manual.ced"
sgml-exposed-tags:nil
sgml-local-catalogs:nil
sgml-local-ecat-files:nil
End:
vim600: syn=xml fen fdm=syntax fdl=2 si
vim: et tw=78 syn=sgml
vi: ts=1 sw=1
-->
|
