Proxy checker using php, By El3ct71k

<?php
#Proxy checker V 1.0
#By El3ct71k, [email protected]
function Proxy($file) {
    $fp = fopen($file, 'r');
    $whitelist = fopen('whitelist.txt', 'a+');
    $blacklist = fopen('blacklist.txt', 'a+');
    $logs = '';
    foreach(explode("\r\n", fread($fp, filesize($file))) as $proxy) {
        $opts = array('http' => array('proxy' => 'tcp://'.$proxy, 'request_fulluri' => true));
        $context = stream_context_create($opts);
        if(@file_get_contents('http://dynupdate.no-ip.com/ip.php', false, $context)==True) {
            $logs .= "[+] ".$proxy."<br />";
            fwrite($whitelist, $proxy."\r\n");
        }
        else {
            fwrite($blacklist, $proxy."\r\n");
            $logs .= "[-] ".$proxy." Not work.<br />";
        }
    }
    fclose($fp);
    fclose($whitelist);
    fclose($blacklist);
    echo $logs;
}

Proxy('proxylist.txt');
?>