--- fenglin/bbs/preference_service.php	2025/04/08 01:58:33	1.2
+++ fenglin/bbs/preference_service.php	2025/04/08 09:27:26	1.3
@@ -92,27 +92,6 @@
 	$sign_2 = mysqli_real_escape_string($db_conn, $sign_2);
 	$sign_3 = mysqli_real_escape_string($db_conn, $sign_3);
 
-	// Begin transaction
-	$rs = mysqli_query($db_conn, "SET autocommit=0");
-	if ($rs == false)
-	{
-		$result_set["return"]["code"] = -2;
-		$result_set["return"]["message"] = "Mysqli error: " . mysqli_error($db_conn);
-
-		mysqli_close($db_conn);
-		exit(json_encode($result_set));
-	}
-	
-	$rs = mysqli_query($db_conn, "BEGIN");
-	if ($rs == false)
-	{
-		$result_set["return"]["code"] = -2;
-		$result_set["return"]["message"] = "Mysqli error: " . mysqli_error($db_conn);
-
-		mysqli_close($db_conn);
-		exit(json_encode($result_set));
-	}
-
 	$sql = "UPDATE user_pubinfo SET user_timezone = '$user_tz', introduction = '$introduction', ".
 		"photo = $photo, sign_1 = '$sign_1', sign_2 = '$sign_2', sign_3 = '$sign_3'".
 		" WHERE UID=" . $_SESSION["BBS_uid"];
@@ -124,17 +103,6 @@
 		exit();
 	}
 
-	// Commit transaction
-	$rs = mysqli_query($db_conn, "COMMIT");
-	if ($rs == false)
-	{
-		$result_set["return"]["code"] = -2;
-		$result_set["return"]["message"] = "Mysqli error: " . mysqli_error($db_conn);
-
-		mysqli_close($db_conn);
-		exit(json_encode($result_set));
-	}
-
 	// Update user_tz in session data
 	$_SESSION["BBS_user_tz"] = new DateTimeZone($user_tz);