php-doc-en/reference/spl/functions/class-implements.xml

<?xml version='1.0' encoding='iso-8859-1'?>
<!-- $Revision: 1.2 $ -->
  <refentry id="function.class-implements">
   <refnamediv>
    <refname>class_implements</refname>
    <refpurpose>
     Return the interfaces which are implemented by the given class
    </refpurpose>
   </refnamediv>
   <refsect1>
    <title>Description</title>
    <methodsynopsis>
     <type>array</type><methodname>class_implements</methodname>
     <methodparam><type>object</type><parameter>class</parameter></methodparam>
    </methodsynopsis>
    <para>
     This function returns an array with the name of the interfaces that the
     given <parameter>class</parameter> implements.
    </para>
    <para>
     <example>
      <title><function>class_implements</function> example</title>
      <programlisting role="php">
<![CDATA[
<?php

interface foo { }
class bar implements foo {}

print_r(class_implements(new bar));

?>
]]>
      </programlisting>
      &example.outputs;
      <screen>
<![CDATA[
Array
(
    [foo] => foo
)
]]>
      </screen>
     </example>
    </para>
   </refsect1>
  </refentry>

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