DomElement->has_attribute
(PHP 4 >= 4.1.0)
DomElement->has_attribute — Checks to see if an attribute exists in the current node
Description
    bool DomElement::has_attribute
     ( string $name
    )
  This functions checks to see if an attribute named name exists in the current node.
Parameters
- name
- 
      The name of the tested attribute. 
Return Values
Returns TRUE if the asked attribute exists, FALSE otherwise.
Examples
Example #1 Testing the existence of an attribute
<?php
include("example.inc");
if (!$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 .= '>';
?>