Просмотр поста

Исправил:

case 'dislike':
$pr = $_GET['id'];
$e = mysql_num_rows(mysql_query("SELECT * FROM `likes` WHERE `uid` = '$uid' AND `pid`='$pr'"));
if(!$e){
    include('../system/head.php');
    echo 'ERROR! You don`t likes this post!'; break;
}

    mysql_query("DELETE FROM `likes` WHERE `uid`='$uid' AND `pid` = '$pr' LIMIT 1");
header('Location: http://'.$set['home'].'/posts/index.php?id='.$pr.'');

break;