$url = "http://api.mcbans.com/v2/05f528996527e63b5eae1bee554d822dd042f779/";

$datatopost = array (
"exec" => "playerLookup",
"player" => $username
);
$ch = curl_init ($url);
curl_setopt ($ch, CURLOPT_POST, true);
curl_setopt ($ch, CURLOPT_POSTFIELDS, $datatopost);
curl_setopt ($ch, CURLOPT_RETURNTRANSFER, true);
$res = curl_exec ($ch);