使用php解析来自api url调用的xml返回结果时出错

Question

what I am missing here? all I get returned is "Location: 0"

ini_set("user_agent","Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.1) Gecko/20061204 Firefox/2.0.0.1");

$url = "http://ebird.org/ws1.1/data/notable/region/recent?rtype=subnational1&r=US-AZ";

$xml = simplexml_load_file($url);

$locname = $xml->response->result->sighting->loc-id;

echo "Location: ".$locname . "<br/>";

Answer 1

the probelem is with the "-" because php think that you want to subtract id from $xml->response->result->sighting->loc

the solution is to change :

$locname = $xml->response->result->sighting->loc-id;

to

$locname = $xml->result[0]->sighting[0]->{'loc-id'};

it work with me

i hope this help you

note : i delete response node because it's the root and i choose the first elemet because the file containe many nodes