PHP - Json externo en PHP = failed to open stream?

{"entry":{"api_version":"v5.85","authpn":"html5player","authpt":"ad5565dfgsftr"},"status":400,"errors":[{"message":"Unsupported device","code":"PLY_DEV_00002","exception":"L2luZXRwdWIvc2VydmljZXMvc3JjL0FtY28vRGV2aWNlLnBocCA3NA=="}]}

<?php

	$url =  "http://mfwkweb-api.clarovideo.net/services/player/getmedia?api_version=v5.85&authpn=html5player&authpt=ad5565dfgsftr";

	$ch = file_get_contents($url);

	$ch = $ch;

$json = json_decode($ch, true);

$data = $json['entry']['authpn'];

print_r($data);

?>

$curl = curl_init();

curl_setopt($curl, CURLOPT_URL, $url);

curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);

curl_setopt($curl, CURLOPT_HEADER, false);

$data = curl_exec($curl);

curl_close($curl);