php - Wrong if/else statement? There is no data on db but it is getting value?

Question

I want to write basic friendship script. But there is a problem. While there is no data on my database table it is accepting is_approved column = 0

while there is no data on my MySQL database , it prints "request pending" why?

EDIT

$per = $db->query("SELECT * FROM permission WHERE user_id = " . $profile_owner_id . "");
$per->setFetchMode(PDO::FETCH_ASSOC);
$per_dat = $per->fetch(); //


//FETCH friendship table // THERE IS NO DATA in friendship table 
$friend_request = $db->query("SELECT * FROM friendship WHERE sender_id = ".$_SESSION['SES_USER_ID']." AND receiver_id=".$profile_owner_id."");
$friend_request->setFetchMode(PDO::FETCH_ASSOC);
$fr_data = $friend_request->fetch(); //



if ( $_SESSION["SES_USER_ID"] != $profile_owner_id ) {

        if($per_dat["get_friendship_request"] == 1) {
            if($fr_data["is_approved"] ==1){
               echo "Allready friend";
            }

            else if($fr_data["is_approved"]==0){
               echo "request pending";
            }

            else{
                echo "Send friend request.";
            }
        }

        else{
            echo "He/she does not accept friend requests..";
        }