Unrecognized error number: 8192: trim(): Passing null to parameter #1 ($string) of type string is deprecated

[darknight7]

A strikingly similar issue was closed as compatibility with php 8.1 was declared complete, except this happens with the latest release.

To Reproduce
Import an ldif like this one:

dn: cn=group123,ou=Group,dc=my,dc=do,dc=ma,dc=in
changetype: modify
add: memberUid
memberUid: mynewmember

Manually adding a member through the interface works.

Trace

PHP Debug Backtrace
File	/var/www/localhost/htdocs/phpla/lib/functions.php (192)
 	Function	error ([a:5:{i:0;s:108:"Unrecognized error number: 8192: t...](https://www.my.domain/phpla/tools/unserialize.php?index=0))
File	/var/www/localhost/htdocs/phpla/lib/functions.php ()
 	Function	app_error_handler ([a:4:{i:0;i:8192;i:1;s:75:"trim(): Passing null to ...](https://www.my.domain/phpla/tools/unserialize.php?index=1))
File	/var/www/localhost/htdocs/phpla/lib/import_functions.php (544)
 	Function	trim ([a:1:{i:0;N;}](https://www.my.domain/phpla/tools/unserialize.php?index=2))
File	/var/www/localhost/htdocs/phpla/lib/import_functions.php (220)
 	Function	getModifyDetails ([a:1:{i:0;a:0:{}}](https://www.my.domain/phpla/tools/unserialize.php?index=3))
File	/var/www/localhost/htdocs/phpla/htdocs/import.php (54)
 	Function	readEntry ([a:0:{}](https://www.my.domain/phpla/tools/unserialize.php?index=4))
File	/var/www/localhost/htdocs/phpla/htdocs/cmd.php (59)
 	Function	include ([a:1:{i:0;s:49:"/var/www/localhost/htdocs/phpla/htd...](https://www.my.domain/phpla/tools/unserialize.php?index=5))

LDAP Server details (please complete the following information):

• OS: Gentoo Linux
• OpenLDAP 2.6.3
• PHP LDAP admin 1.2.6.6
• PHP 8.1.20 (fpm)
• Apache 2.4.57

[williamdes]

I confirm this bug with the same data input using another object

[williamdes]

Could you try my patch: #249 ?

[darknight7]

Tried and working 100% thank you!

[williamdes]

Please do not close this issue, when the PR is merged it will automatically close
Can you re open?