proxy checker

<?php

$ip = file_get_contents("list.txt");
$ip2 = explode("\r\n", $ip);
foreach ($ip2 as $key => $value) {
    $data = explode(":", $value);
    $proxy = $data[0];
    $port = $data[1];

    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, "http://ip-api.com/json/".$proxy."");
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
    $gege = curl_exec($ch);
    curl_close($ch);

    $gege1 = json_decode($gege, true);
    $negara = $gege1['country'];
    $isp = $gege1['isp'];


    $curl = curl_init();
    curl_setopt($curl, CURLOPT_URL, "https://proxy-checker.net/api/proxy-checker/");
    curl_setopt($curl, CURLOPT_POST, true);
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);

    $headers = [
        "Accept: */*",
        "Accept-Language: en-US,en;q=0.9",
        "Connection: keep-alive",
        "Content-Type: application/x-www-form-urlencoded; charset=UTF-8",
        "Origin: https://proxyline.net",
        "Referer: https://proxyline.net/",
        "User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/100.0.4896.127 Safari/537.36",
    ];
    curl_setopt($curl, CURLOPT_HTTPHEADER, $headers);

    $data1 = "proxy_list=" . $proxy . "%3A" . $port . "";

    curl_setopt($curl, CURLOPT_POSTFIELDS, $data1);

    $resp = curl_exec($curl);
    curl_close($curl);
    //var_dump($resp);
    $hasil = json_decode($resp, true);
    foreach ($hasil as $key => $value) {
        if ($value["valid"] == true) {
            if ($value["data"]["connection_time"] < 3) {
                $untukcheck = $value["ip"] . ":" . $value["port"] . " - ".$negara." - ".$isp." | Response Time : " . $value["data"]["connection_time"] . "\r\n";
                echo "CEPAT : " . $value["ip"] . ":" . $value["port"] . " | " . $value["protocol"] . " | Anonimity : " . $value["data"]["anonymity_level"] . " - ".$negara." - ".$isp." | Response Time : " . $value["data"]["connection_time"] . " second | LIVE! \r\n";
                $save = fopen("live-proxy.txt", "a+");
                fwrite($save, $untukcheck);
                fclose($save);
            } else {
                echo "LELET : " . $value["ip"] . ":" . $value["port"] . " | " . $value["protocol"] . " | " . $value["data"]["anonymity_level"] . " | " . $value["data"]["connection_time"] . " LIVE! \r\n";
                $save = fopen("lambat-proxy.txt", "a+");
                fwrite($save, $untukcheck);
                fclose($save);
            }
        } elseif ($value["valid"] == false) {
            echo "IP : " . $value["ip"] . ":" . $value["port"] . " DEAD! \r\n";
        }
    }
}

?>