Deprecated: trim(): error after upgrade to PHP 8.1

[geekowl]

Hi guys,
I have a huge problem with php since upgrading to php version 8.1. on my wordpress.
Since I am using many of the nulled plugins and I am afraid to go to any other help forum

The error message appears when I go to the wp-admin page:
Deprecated: trim(): Passing null to parameter #1 ($string) of type string is deprecated in /mnt/web210/e3/53/511737053/htdocs/STRATO-apps/wordpress_05/app/wp-includes/class-wp-user.php on line 211 Warning: Cannot modify header information - headers already sent by (output started at /mnt/web210/e3/53/511737053/htdocs/STRATO-apps/wordpress_05/app/wp-includes/class-wp-user.php:211) in /mnt/web210/e3/53/511737053/htdocs/STRATO-apps/wordpress_05/app/wp-includes/pluggable.php on line 1435 Warning: Cannot modify header information - headers already sent by (output started at /mnt/web210/e3/53/511737053/htdocs/STRATO-apps/wordpress_05/app/wp-includes/class-wp-user.php:211) in /mnt/web210/e3/53/511737053/htdocs/STRATO-apps/wordpress_05/app/wp-includes/pluggable.php on line 1438

The line 211 in the class-wp-user.php file is attached as image (cannot find anything wrong)
The line 1438 in the pluggable.php is attached also

The website is sanfranciscopark.com

I have no knowledge of php and I am lost

Can you please help me?

 

[Hzura]

the only ways is downgrade or search newest plugin so they works on newer php

if you want to waste some money, maybe i can help you with cloning current plugin to support newest php

 

[geekowl]

the only ways is downgrade or search newest plugin so they works on newer php

if you want to waste some money, maybe i can help you with cloning current plugin to support newest php

Where do you get the info from that it is a plugin causing the problem?

 

[Hzura]

Where do you get the info from that it is a plugin causing the problem?

well i cant tell yet since i didn't touch the system myself...

but on past back where i just run all my sites on php 7.2 and 7.4 only
when i upgrade on php 8 (and now new 8.1 appear)
it's always broken

my WP sites is worse... the main source of money from safelink
i can't even login
and the sites error

after realizing the issue
i fix it one by ones
takes me 2 days, and it's woking as it used before......

learning note is
don't upgrade system if the apps didn't support it

 

[geekowl]

Sorry but I guess your translation is not the best and of what i understand you replies are not the most helpful

Does anyone else have an idea?

 

[phpCore]

You need to rewrite your code, example:

$var2 = '';

if(!empty($var)) $var2 = trim($var);

 

[Hzura]

Sorry but I guess your translation is not the best and of what i understand you replies are not the most helpful

Does anyone else have an idea?

ok

 

[geekowl]

You need to rewrite your code, example:

$var2 = '';

if(!empty($var)) $var2 = trim($var);

can u help me with that or too much of asking?

 

[phpCore]

can u help me with that or too much of asking?

send me the concerned script/file/code via pm