functions_content.php error : Trying to access array offset on value of type bool

[exemplary1]

Clicking on Posts number in post profile, this error appears.
[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions_content.php on line 413: Trying to access array offset on value of type bool
There is atleast one local language character which is causing this error.

lines 412 and 413 of /includes/functions_content.php

Code: Select all

	
{
	preg_match_all('/[a-zA-Z0-9][^a-zA-Z0-9]/u', $fragment, $matches, PREG_OFFSET_CAPTURE);
	$fragment_end = end($matches[0])[1]; // last valid alphanumeric character
}

Edit : I am using latest Phpbb 3.3.13
It shows all the posts of a user but with above error. If I remove that particular character, error disappears.

[Kailey]

What PHP version? Also, have you tried deleting everything in the /cache/ directory except for .htaccess and index.htm?

See below post

[rxu]

I think this is the same bug as here https://tracker.phpbb.com/browse/PHPBB-17387.

[exemplary1]

I did a little google search and most people having such issues in phpbb or other web software, is mostly due to upgrading PHP to version 8 from 7.x.

In my localhost I have PHP 7.2, and it works, while on my Webhost I have 8.x version.

[rxu]

PHP 7.2, and it works

This is due PHP 8 has changed the way errors are handled. In other words, the bug is still there but error is not displayed on PHP 7 and is displayed on PHP 8.

[exemplary1]

PHP 7.2, and it works

This is due PHP 8 has changed the way errors are handled. In other words, the bug is still there but error is not displayed on PHP 7 and is displayed on PHP 8.

I see.
I would like to add that on both PHP 7 and PHP 8, the searched post(s) shows 1st character only out of post.
I dont understand how a character can cause the problem. Because as I said earlier, if I remove that character, there is no error and search post is shown (not just 1st character).

[rxu]

I dont understand how a character can cause the problem.

That's because of the regular expression used which spans only alphanuneric characters. It's a bug, the ticket is linked above.

[exemplary1]

Thank you !
It shows Resolution : Fixed. So, is solution available ? Am I missing something ?

[rxu]

The PR https://github.com/phpbb/phpbb/pull/6712 has been merged into the core.

[exemplary1]

The PR https://github.com/phpbb/phpbb/pull/6712 has been merged into the core.

Sorry, I dont understand.
Do I have to wait for next update ? Or I need to change manually,
https://github.com/phpbb/phpbb/pull/671 ... af589bdcf8

[rxu]

I've just linked the fix requested Next is up to you, if you're experienced and confident enough when it comes to manual code manupulation, you can try applying the fix. Otherwise it'd be better to wait until v.3.3.14 got released.

[exemplary1]

I think I will wait for the update, but might try on localhost. Thank you so much for the help !

[rxu]

To simplify, the whole function get_context can be just replaced.

[exemplary1]

To simplify, the whole function get_context can be just replaced.

Voila, just replaced the function on localhost and its showing the contents in posts search. Will update here after making changes on website.
Thank you once again !

[exemplary1]

Made changes and working on website.