DomElement->has_attribute

(PHP 4 >= 4.1.0)

DomElement->has_attribute — Checks to see if an attribute exists in the current node

说明

bool DomElement::has_attribute ( string $name )

This functions checks to see if an attribute named name exists in the current node.

参数

name: The name of the tested attribute.

返回值

Returns TRUE if the asked attribute exists, FALSE otherwise.

范例

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 .= '>';

?>

Migrating to PHP 5

Use DOMElement::hasAttribute.