لدي هذه الكود

  $filesarray = array(
    'http://45.32.233.5//file-1.php',
    'http://45.32.233.5//file-2.php',
    'http://45.32.233.5//file-3.php',
  );

foreach($filesarray as $file){
  if( strpos(file_get_contents($file),'class="vid-brahim"') !== false) {
   echo $file;
   break;
  }
}

انا اريد من الكود ان يرسل User-Agent مثل هذا الكود

$url = "";

$options = array(
  'http'=>array(
    'method'=>"GET",
    'header'=>"Accept-language: en\r\n" .
              "Cookie: foo=bar\r\n" .  // check function.stream-context-create on php.net
              "User-Agent: Mozilla/5.0 (iPad; U; CPU OS 3_2 like Mac OS X; en-us) AppleWebKit/531.21.10 (KHTML, like Gecko) Version/4.0.4 Mobile/7B334b Safari/531.21.102011-10-16 20:23:10\r\n" // i.e. An iPad 
  )
);

$context = stream_context_create($options);
$file = file_get_contents($url, false, $context);