0) { $result = true; } else { $result = false; } echo json_encode($result); } else if (isset($_POST["delFavoriteList"])) { $delFavoriteList = $_POST["delFavoriteList"]; $username = $_POST["username"]; foreach ($delFavoriteList as $key => $value) { $sql = "BEGIN IF EXISTS (SELECT * FROM [BIMComponents].[dbo].[Favorite_Table] WHERE [id] = '" . $value . "' AND [user_name] = '" . $username . "') BEGIN DELETE FROM [BIMComponents].[dbo].[Favorite_Table] WHERE [id] = '" . $value . "' AND [user_name] = '" . $username . "' END END"; sqlsrv_query($conn, $sql); } } sqlsrv_close($conn);