(PHP 4 >= 4.1.0)
DomNode->attributes — Returns list of attributes
This function only returns an array of attributes if the node is of type XML_ELEMENT_NODE.
(PHP >= 4.3 only) If no attributes are found, NULL is returned.
A function to get the value of an attribute given the name of the desired attribute and the results of attributes() to the second parameter.
<?php
function getAttribute($name, $att)
{
    foreach($att as $i)
    {
        if($i->name()==$name)
            return $i->value();        
    }
}?>
$xpath = $parseDoc->xpath_new_context($parseDoc);       
$getResultSearch = $xpath->xpath_eval("//PROPERTY_INFORMATION_RESPONSE/_PRODUCT");
$nodesetResult = $getResultSearch->nodeset; 
$var1=$getResultSearch->nodeset[0]->attributes() ;
implode($var1);
print_r ($var1 )  ;
// it prints something like this:::::
Array ( [0] => domattribute Object ( [type] => 2 [name] => _PrettyAttr [value] => Y [0] => 26 [1] => 161068800 ) )