php-doc-en/reference/domxml/functions/DomElement-has-attribute.xml

<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.7 $ -->
<!-- splitted from ./en/functions/domxml.xml, last change in rev 1.38 -->
  <refentry id='function.domelement-has-attribute'>
   <refnamediv>
    <refname>DomElement->has_attribute</refname>
    <refpurpose>
     Checks to see if an attribute exists in the current node
    </refpurpose>
   </refnamediv>
   <refsect1>
    &reftitle.description;
    <methodsynopsis>
     <type>bool</type><methodname>DomElement->has_attribute</methodname>
     <methodparam><type>string</type><parameter>name</parameter></methodparam>
    </methodsynopsis>
    <para>
     This functions checks to see if an attribute named
     <parameter>name</parameter> exists in the current node.
    </para>
    <para>
     <example>
      <title>Testing the existence of an attribute</title>
      <programlisting role="php">
<![CDATA[
<?php

include("example.inc");

if (!$dom = domxml_open_mem($xmlstr)) {
    echo "Error while parsing the document\n";
    exit;
}

$root = $dom->document_element();

$buffer = '<html';
if ($root->has_attribute('language')) {
    $buffer .= 'lang="' . $root->get_attribute('language') . '"';
}
$buffer .= '>';

?>

]]>
      </programlisting>
     </example>
    </para>
   </refsect1>
  </refentry>

<!-- Keep this comment at the end of the file
Local variables:
mode: sgml
sgml-omittag:t
sgml-shorttag:t
sgml-minimize-attributes:nil
sgml-always-quote-attributes:t
sgml-indent-step:1
sgml-indent-data:t
indent-tabs-mode:nil
sgml-parent-document:nil
sgml-default-dtd-file:"../../../../manual.ced"
sgml-exposed-tags:nil
sgml-local-catalogs:nil
sgml-local-ecat-files:nil
End:
vim600: syn=xml fen fdm=syntax fdl=2 si
vim: et tw=78 syn=sgml
vi: ts=1 sw=1
-->