高德地图 根据地址获取经纬度

/***********高德地图 根据地址获取经纬度************/
function getCoorByAddr($address)
{
    $key = C('GAODE_KEY');
//    $key = 'd20f62e5a58433a20e75c015a4f054fe';
    $url = "http://restapi.amap.com/v3/geocode/geo?key={$key}&address={$address}";
    $arr = file_get_contents($url);
    $newarr = json_decode($arr, true);
    if($newarr['info']=='OK'){
        $coor = $newarr['geocodes'][0]['location'];
        $coor =explode(',',$coor);
//        var_dump($coor);
        return array(
            'coor_x'=>$coor[0],
            'coor_y'=>$coor[1],
        );
    }
}