DomElement->has_attribute
(no version information, might be only in CVS)
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.
例子 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 .= '>';
?>
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