mirror of
https://github.com/sigmasternchen/php-doc-en
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a2b4ab18a6
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@147767 c90b9560-bf6c-de11-be94-00142212c4b1
109 lines
2.5 KiB
XML
109 lines
2.5 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.7 $ -->
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<!-- splitted from ./en/functions/var.xml, last change in rev 1.84 -->
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<refentry id="function.var-dump">
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<refnamediv>
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<refname>var_dump</refname>
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<refpurpose>Dumps information about a variable</refpurpose>
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</refnamediv>
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<refsect1>
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<title>Description</title>
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<methodsynopsis>
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<type>void</type><methodname>var_dump</methodname>
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<methodparam><type>mixed</type><parameter>expression</parameter></methodparam>
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<methodparam choice="opt"><type>mixed</type><parameter>expression</parameter></methodparam>
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<methodparam choice="opt"><parameter>...</parameter></methodparam>
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</methodsynopsis>
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<simpara>
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This function displays structured information about one or more
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expressions that includes its type and value. Arrays and objects are
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explored recursively with values indented to show structure.
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</simpara>
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<simpara>
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In PHP only public properties of objects will be returned in the output.
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<function>var_export</function> and <function>print_r</function> will
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also return protected and private properties.
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</simpara>
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&tip.ob-capture;
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<para>
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<example>
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<title><function>var_dump</function> example</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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$a = array (1, 2, array ("a", "b", "c"));
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var_dump($a);
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?>
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]]>
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</programlisting>
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<para>
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Output:
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</para>
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<screen>
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<![CDATA[
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array(3) {
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[0]=>
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int(1)
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[1]=>
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int(2)
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[2]=>
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array(3) {
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[0]=>
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string(1) "a"
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[1]=>
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string(1) "b"
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[2]=>
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string(1) "c"
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}
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}
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]]>
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</screen>
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<programlisting role="php">
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<![CDATA[
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<?php
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$b = 3.1;
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$c = true;
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var_dump($b, $c);
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?>
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]]>
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</programlisting>
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<para>
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output:
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</para>
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<screen>
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<![CDATA[
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float(3.1)
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bool(true)
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]]>
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</screen>
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</example>
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</para>
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<simpara>
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See also <function>var_export</function> and
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<function>print_r</function>.
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</simpara>
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</refsect1>
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</refentry>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:t
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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indent-tabs-mode:nil
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sgml-parent-document:nil
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sgml-default-dtd-file:"../../../../manual.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:nil
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sgml-local-ecat-files:nil
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End:
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vim600: syn=xml fen fdm=syntax fdl=2 si
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vim: et tw=78 syn=sgml
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vi: ts=1 sw=1
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-->
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