Uncaught TypeError: Unsupported operand types

@WikiAdmin Uhmm...So it's probably a stupid question. As I pointed out in my previous comment, I lost all the data from my wiki site, including the database. And I didn't have time to rebuild my site until the last few days. I seem to have had to do an upgrade, but I couldn't because of the lost database tables. Is there any way to allow me to do a re-install rather than a version upgrade?
Updated: I found an old copy of the database files on my local device and I uploaded it to my new database, so the wiki site has been online. However, when I try to save my article after edited, I will get an Error 500 page. How can I debug and fix it?

Thanks.

Comments

Re: Uncaught TypeError: Unsupported operand types

Please read the Debug section and turn PHP error reporting in the constants.php file on. The error log will tell you exactly where the error is.
- WikiAdmin
- 28.01.2023 16:36
- 04.02.2023 12:36 edited
回复: Uncaught TypeError: Unsupported operand types

Hello.
But after I followed the ∬3.1.1 and ∬3.1.3 parts of Debug Section, I still could not see the debug information on my wiki page
- Capixo
- 30.01.2023 10:22
- 04.02.2023 12:37 edited
Re: Uncaught TypeError: Unsupported operand types

Please check your error log files:

check error logs
1. \apache\logs\error.log
2. \php\logs\php_error_log
Not all error messages will surface in your browser.
- WikiAdmin
- 30.01.2023 14:09
- 04.02.2023 12:37 edited

回复: Uncaught TypeError: Unsupported operand types

Hello.

I copied the apache logs here. I don't know how to find deeper reasons based on these. Can you help?

error.log

[Mon Jan 30 05:04:50.767414 2023] [php:error] [pid 22208] [client 39.183.131.210:57852] PHP Fatal error:  Uncaught TypeError: Unsupported operand types: int - string in /home/admin/web/wiki.koushitsu.divvp.space/public_html/handler/page/edit.php:148\nStack trace:\n#0 /home/admin/web/wiki.koushitsu.divvp.space/public_html/class/wacko.php(5080): include()\n#1 /home/admin/web/wiki.koushitsu.divvp.space/public_html/class/wacko.php(5159): Wacko->include_buffered()\n#2 /home/admin/web/wiki.koushitsu.divvp.space/public_html/class/wacko.php(7355): Wacko->method()\n#3 /home/admin/web/wiki.koushitsu.divvp.space/public_html/index.php(62): Wacko->run()\n#4 {main}\n  thrown in /home/admin/web/wiki.koushitsu.divvp.space/public_html/handler/page/edit.php on line 148, referer: https://wiki.koushitsu.divvp.space/%E9%A6%96%E9%A1%B5/edit

回复: Does wackowiki allow users to use templates

@WikiAdmin Umm…Maybe I have a related additional discovery about the error. Just minutes ago, I tried to edit my user page and.get.the same error. Will it because of the lack of user's permission? Thank you.
- Capixo
- 03.02.2023 08:34
Re: Uncaught TypeError: Unsupported operand types

The following line is missing in your config_defaults.php
```
'max_page_size'					=> 2048 * 1024,	
```
It is very likely that you have just a older version of this file in your config folder. This is causing the Unsupported operand types error.

Please replace the old version of the file with the new one and this should solve the issue.
- WikiAdmin
- 04.02.2023 12:32
回复: Uncaught TypeError: Unsupported operand types

@WikiAdmin Thank you for the advice. So can I ask if there is a quick way to find out which are the older versions of the files? Maybe some older and newer files indeed are lying together.
- Capixo
- 06.02.2023 08:32
回复: Uncaught TypeError: Unsupported operand types

I still get the HTTP500 Error after I replaced all older files. Maybe it is about other reasons.
- Capixo
- 06.02.2023 13:24
Re: Uncaught TypeError: Unsupported operand types

It is only this file and the missing parameter from above, that's all.
config/config_defaults.php

And purge the config cache via the admincache action or manually.
_cache/config/config.php
- WikiAdmin
- 06.02.2023 17:23
- 09.02.2023 14:33 edited
Re: Uncaught TypeError: Unsupported operand types

To narrow down the error source:
```
PHP Fatal error:  Uncaught TypeError: Unsupported operand types: int - string in /wiki/handler/page/edit.php:148	
```
The following lines throwing the Fatal error because of the missing config value.

handler/page/edit.php #Line 148
```
<?php
// check text length
if ($text_size > $this->db->max_page_size)
{
    $message = Ut::perc_replace(
        $this->_t('TextDbOversize'),
        '<code>' . number_format($text_size - $this->db->max_page_size, 0, ',', '.') . '</code>');
    $this->set_message($message , 'error');
    $error = true;
}

	
```
This check is not critical, so you can comment out the entire if {} enclosure or you add the missing parameter to your config array.

The config array is created by reading first the config_defaults.php then the config table, and it merges both arrays so that every parameter present in the config table replaces the default values. This config array is then written in the _cache/config/ folder.

Now if a parameter is missing, then it is neighter in the config_default.php nor the config table, or the cached config still has the old values and must be updated.

config_defaults.php
```
'max_page_size'					=> 2048 * 1024,	
```
You can add it by hand or copy the linked version into your config folder.
- WikiAdmin
- 09.02.2023 14:02
- 09.02.2023 14:48 edited