<?php

    $user=mysqli_fetch_assoc(mysqli_query($db, "SELECT * FROM table_users WHERE `usr#login`='".$_POST['text']."'"));
    if(!$user) {
        echo 'Nie znaleziono użytkownika o podanym loginie!';
        exit;
    }
    if(!$user['usr#premium'] || $user['usr#premium']=='0000-00-00 00:00:00') {
        $npremium=date('Y-m-d H:i:s',time()+($_variables['days']*86400));
    } else {
        $npremium=date('Y-m-d H:i:s',strtotime($user['usr#premium'])+($_variables['days']*86400));       
    }
    mysqli_query($db, "UPDATE table_users SET `usr#premium`='".$npremium."' WHERE usrId='".$user['usrId']."'");
    echo 'OK';
  
?>