php-doc-en/reference/com/functions/com-isenum.xml

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  <refentry id='function.com-isenum'>
   <refnamediv>
    <refname>com_isenum</refname>
    <refpurpose>Indicates if a COM object has an IEnumVariant interface for iteration [deprecated]</refpurpose>
   </refnamediv>
   <refsect1>
    <title>Description</title>
     <methodsynopsis>
      <type>bool</type><methodname>com_isenum</methodname>
      <methodparam><type>variant</type><parameter>com_module</parameter></methodparam>
     </methodsynopsis>
    <para>
     Checks to see if a COM object can be enumerated using the 
     <literal>Next()</literal>  method hack.  Returns &true; if it can, &false; if it cannot.
     See <xref linkend="class.com"/> class for more details on these
     methods.
    </para>
    <note>
     <para>
      This function does not exist in PHP 5; use the more natural
      <link linkend="control-structures.foreach">foreach</link> statement to iterate
      over the contents of COM objects.  See <xref linkend="com.foreach"/> for
      more details.
     </para>
    </note>
   </refsect1>
  </refentry>

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