From 82132227fd84097d2c0b913f651a5a90c813e8fc Mon Sep 17 00:00:00 2001
From: gigabit-coil <106474879+gigabit-coil@users.noreply.github.com>
Date: Mon, 25 Jul 2022 15:24:00 +0300
Subject: [PATCH] Update func.php

1. Added conversion to array for the first run.
2. Updated the way to add to the array, after the previous one is not supported.
---
 en/developer_guide/addons/tutorials/files/func.php | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/en/developer_guide/addons/tutorials/files/func.php b/en/developer_guide/addons/tutorials/files/func.php
index ab4be620f..0e04f3809 100644
--- a/en/developer_guide/addons/tutorials/files/func.php
+++ b/en/developer_guide/addons/tutorials/files/func.php
@@ -28,9 +28,11 @@ function fn_advanced_addon_get_category_data_pre($category_id, $field_list, $get
 
 		if (!empty($viewed_categories)) {
 			$viewed_categories = unserialize($viewed_categories);
+		} else {
+			$viewed_categories = array();
 		}
 
-		$viewed_categories[$category_id] = true;
+		array_push($viewed_categories, $category_id);
 		$viewed_categories = serialize($viewed_categories);
 
 		db_query('REPLACE INTO ?:advanced_addon_data VALUES (?i, ?s)', $auth['user_id'], $viewed_categories);