How to delete a message in PHP and MySQL? -


how can user delete message sends or other user sends? message should shown in conversation of 1 hasn't deleted message.

if($action == 'delete_mess') {      $hash=$_get['hash'];     $mess_id=$_get['mess_id'];      $mess_query=mysql_query("select * messages hash = '$hash'");      while($check_mess = mysql_fetch_assoc($mess_query)) {          $from = $check_mess['from_id'];         $to = $check_mess['to_id'];     }      if ($from == $session_user_id) {          mysql_query("update messages set from_del = 1 `id` = '$mess_id' ");      } else {          mysql_query("update messages set to_del = 1 `id` = '$mess_id' ");     }      header('location: messages.php?hash='.$hash); }

hash conversation id started.


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