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<refentry xml:id="function.get-parent-class" xmlns="http://docbook.org/ns/docbook">
 <refnamediv>
  <refname>get_parent_class</refname>
  <refpurpose>Retrieves the parent class name for object or class</refpurpose>
 </refnamediv>
 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type class="union"><type>string</type><type>false</type></type><methodname>get_parent_class</methodname>
   <methodparam choice="opt"><type class="union"><type>object</type><type>string</type></type><parameter>object_or_class</parameter></methodparam>
  </methodsynopsis>
  <para>
   Retrieves the parent class name for object or class.
  </para>
 </refsect1>
 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>object_or_class</parameter></term>
     <listitem>
      <para>
       The tested object or class name. This parameter is optional if called
       from the object's method.
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>
 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   Returns the name of the parent class of the class of which
   <parameter>object_or_class</parameter> is an instance or the name.
  </para>
  <note>
   <para>
    If the object does not have a parent or the class given does not exist &false; will be returned.
   </para>
  </note>
  <para>
   If called without parameter outside object, this function returns &false;.
  </para>
 </refsect1>

 <refsect1 role="changelog">
  &reftitle.changelog;
  <informaltable>
   <tgroup cols="2">
    <thead>
     <row>
      <entry>&Version;</entry>
      <entry>&Description;</entry>
     </row>
    </thead>
    <tbody>
     <row>
      <entry>8.0.0</entry>
      <entry>
       The <parameter>object_or_class</parameter> parameter now only accepts objects or valid class names.
      </entry>
     </row>
    </tbody>
   </tgroup>
  </informaltable>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title>Using <function>get_parent_class</function></title>
    <programlisting role="php">
<![CDATA[
<?php

class Dad {
    function __construct()
    {
    // implements some logic
    }
}

class Child extends Dad {
    function __construct()
    {
        echo "I'm " , get_parent_class($this) , "'s son\n";
    }
}

class Child2 extends Dad {
    function __construct()
    {
        echo "I'm " , get_parent_class('child2') , "'s son too\n";
    }
}

$foo = new child();
$bar = new child2();

?>
]]>
    </programlisting>
    &example.outputs;
    <screen>
<![CDATA[
I'm Dad's son
I'm Dad's son too
]]>
    </screen>
   </example>
  </para>
 </refsect1>
 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>get_class</function></member>
    <member><function>is_subclass_of</function></member>
    <member><function>class_parents</function></member>
   </simplelist>
  </para>
 </refsect1>
</refentry>

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