<?php
$list = "61.131.31.1944444444:8080     srty dfth dfg h
82.142.152.444444440:80     dfgh dfg hd
123.130.112.17:8080     dfgh dfg hdf

";

$goodproxylist = '';
    
function pping ($a)
{
    error_reporting(0);
    $z=explode(":", $a);
    $z= $z[0];
    $fo = fsockopen($z, 21, $errno, $errstr, 1);
    if ($fo) $ret = 1;
        else $ret = 0;
    fclose($fo);
    return $ret;
}

foreach (explode ("\n", $list) as $key=>$value) {
    $z ='';
    $z=explode("\t", trim($value));
    $allproxy[] = $z[0];
}


foreach ($allproxy as $key=>$value)
{
    $proxy = $value;
    if(strlen($proxy)<5) continue;
    //if (!pping($value)) continue;

    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, 'http://iscience.ru/');
    curl_setopt($ch, CURLOPT_HEADER, 1);

    $headers[] = 'Accept: image/gif, image/x-bitmap, image/jpeg, image/pjpeg';
    $headers[] = 'Connection: Keep-Alive';
    $headers[] = 'Content-type: application/x-www-form-urlencoded;charset=UTF-8';
    $user_agent = 'Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 1.0.3705; .NET CLR 1.1.4322; Media Center PC 4.0)';
    curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
    curl_setopt($ch, CURLOPT_HEADER, 0);
    curl_setopt($ch, CURLOPT_USERAGENT, $user_agent);


    curl_setopt($ch, CURLOPT_TIMEOUT, 10);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
    curl_setopt($ch, CURLOPT_PROXY, "$proxy");
    curl_setopt($ch,CURLOPT_FAILONERROR,true);

    $data = curl_exec($ch);


    if (curl_error($ch)) {
        print "Curl error #: " . curl_errno($ch) . " - " . curl_error ($ch) . " - exiting.<br>";
    }else {
        echo $proxy . ' - fine<br>';
        $goodproxylist .= $proxy.'<br>';
    }
    curl_close($ch);
    @ob_flush(); flush();
}

echo '<hr>'.$goodproxylist.'<hr>';



?>