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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<!-- splitted from ./en/functions/var.xml, last change in rev 1.84 -->
<refentry xml:id="function.var-dump" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>var_dump</refname>
<refpurpose>Dumps information about a variable</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>void</type><methodname>var_dump</methodname>
<methodparam><type>mixed</type><parameter>value</parameter></methodparam>
<methodparam rep="repeat"><type>mixed</type><parameter>values</parameter></methodparam>
</methodsynopsis>
<simpara>
This function displays structured information about one or more
expressions that includes its type and value. Arrays and objects are
explored recursively with values indented to show structure.
</simpara>
<simpara>
All public, private and protected properties of objects will be returned in
the output unless the object implements a
<link linkend="language.oop5.magic.debuginfo">__debugInfo()</link> method.
</simpara>
&tip.ob-capture;
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>value</parameter></term>
<listitem>
<para>
The expression to dump.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>values</parameter></term>
<listitem>
<para>
Further expressions to dump.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
&return.void;
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title><function>var_dump</function> example</title>
<programlisting role="php">
<![CDATA[
<?php
$a = array(1, 2, array("a", "b", "c"));
var_dump($a);
?>
]]>
</programlisting>
&example.outputs;
<screen>
<![CDATA[
array(3) {
[0]=>
int(1)
[1]=>
int(2)
[2]=>
array(3) {
[0]=>
string(1) "a"
[1]=>
string(1) "b"
[2]=>
string(1) "c"
}
}
]]>
</screen>
<programlisting role="php">
<![CDATA[
<?php
$b = 3.1;
$c = true;
var_dump($b, $c);
?>
]]>
</programlisting>
&example.outputs;
<screen>
<![CDATA[
float(3.1)
bool(true)
]]>
</screen>
</example>
</para>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>print_r</function></member>
<member><function>debug_zval_dump</function></member>
<member><function>var_export</function></member>
<member><link linkend="language.oop5.magic.debuginfo">__debugInfo()</link></member>
</simplelist>
</para>
</refsect1>
</refentry>
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