php - What is the correctt way to check headers with file_get_contents -

what correct/best way check headers file_get_contents function? example code i'm using right based on riot's api league of legends stats:

$summonername = htmlspecialchars($_post["main_summoner"]); $url = file_get_contents('https://euw.api.pvp.net/api/lol/euw/v1.4/summoner/by-name/' . $summonername . '?api_key=' . $apikey); $result = json_decode($url, true); $summoner = $result[$summonername]['name']; 

i know how turn headers array using

$http_response_header 

but correct way find extract first header , check value? compare first value in array 404 error instance or need check if string contains keyword? correct way go this?

edit here new/working code

$url1 = "https://euw.api.pvp.net/api/lol/euw/v1.4/summoner/by-name/" . $summonername . "?api_key=" . $apikey; $ch = curl_init(); curl_setopt($ch, curlopt_ssl_verifypeer, false); curl_setopt($ch, curlopt_returntransfer, true); curl_setopt($ch, curlopt_url,$url1); $result=curl_exec($ch); $httpcode = curl_getinfo($ch, curlinfo_http_code); curl_close($ch); 

and check httpcode with:

if($httpcode !== 404) {