<?
header('Access-Control-Allow-Origin: *');
if(isset($_GET['url'])) {
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $_GET['url']);
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_exec($ch);
    if(in_array(substr(get_headers(curl_getinfo($ch, CURLINFO_EFFECTIVE_URL))[0], 9, 3),array("100","101","200","201","202","301","302","307","308"))){
        echo 1;
    }else{
        echo 0;
    }
}
?>