，php解析带命名空间的xml

$x = new SimpleXmlElement($str);  
foreach($x->entry as $t){  
    echo $t->id . "
";  
    echo $t->updated . "
";  
    $namespaces = $t->getNameSpaces(true);  
    $gd = $t->children($namespaces['ns1']);   
    echo $gd->phoneNumber;  
}