PHP output array with all key values of the same value

PHP output array values of all key values
, I want to output the value after all the keys are uses-permission android:name, what should I do? Uses-permission Android:name The number of bars is not fixed.
------Solution--------------------
X.xml

 
  $xmlfile = ' x.xml ';
$data = Simplexml_load_file ($xmlfile);

$key = ' uses-permission ';
$arr = Array ();
foreach ($data $key as $uses _permission) {
    $c = (string) $uses _permission->attributes (' Android ', true);
    Array_push ($arr, $c);
}

Print_r ($arr);
?>

Output:
Array
(
[0] = Android.permission.ACCESS_COARSE_LOCATION
[1] = Android.permission.ACCESS_FINE_LOCATION
[2] = Android.permission.ACCESS_WIFI_STATE
[3] = Android.permission.ACCESS_NETWORK_STATE
[4] = Android.permission.CHANGE_WIFI_STATE
[5] = Android.permission.INTERNET
)

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