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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.8 $ -->
<!-- splitted from ./en/functions/classobj.xml, last change in rev 1.1 -->
<refentry id="function.get-object-vars">
<refnamediv>
<refname>get_object_vars</refname>
<refpurpose>Returns an associative array of object properties</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<methodsynopsis>
<type>array</type><methodname>get_object_vars</methodname>
<methodparam><type>object</type><parameter>obj</parameter></methodparam>
</methodsynopsis>
<para>
This function returns an associative array of defined object properties
for the specified object <parameter>obj</parameter>.
</para>
<note>
<para>
In versions prior to PHP 4.2.0, if the variables declared in the class
of which the <parameter>obj</parameter> is an instance, have not been
assigned a value, those will not be returned in the array. In versions
after PHP 4.2.0, the key will be assigned with a &null; value.
</para>
</note>
<para>
<example>
<title>Use of <function>get_object_vars</function></title>
<programlisting role="php">
<![CDATA[
<?php
class Point2D {
var $x, $y;
var $label;
function Point2D($x, $y)
{
$this->x = $x;
$this->y = $y;
}
function setLabel($label)
{
$this->label = $label;
}
function getPoint()
{
return array("x" => $this->x,
"y" => $this->y,
"label" => $this->label);
}
}
// "$label" is declared but not defined
$p1 = new Point2D(1.233, 3.445);
print_r(get_object_vars($p1));
$p1->setLabel("point #1");
print_r(get_object_vars($p1));
?>
]]>
</programlisting>
&example.outputs;
<screen>
<![CDATA[
Array
(
[x] => 1.233
[y] => 3.445
[label] =>
)
Array
(
[x] => 1.233
[y] => 3.445
[label] => point #1
)
]]>
</screen>
</example>
</para>
<simpara>
See also <function>get_class_methods</function> and
<function>get_class_vars</function>.
</simpara>
</refsect1>
</refentry>
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