PHP Warning: Attempt to read property "id" on null

[DJBenz]

I've been using LiteSpeed Cache for some time now and noticed the following warning in my server's error log:

PHP Warning: Attempt to read property "id" on null in public_html/plugins/system/lscache/lscache.php on line 203

Since yesterday I've got about 4500 lines with this error. Joomla LiteSpeed Cache v1.5.1 with Joomla! 3.10.11 and the server is running PHP 8.0

Any ideas what's causing the warning and how to resolve it?

 

[serpent_driver]

Any ideas what's causing the warning and how to resolve it?

This is the result of only limited PHP 8 compatibility, but without any significant functional consequences. You can either ignore this warning or use

ini_set('ignore_repeated_errors', True);

to prevent the repeated writing of this warning until there is an update.

The same reported issue: https://www.litespeedtech.com/suppo...rty-stdclass-vary_language.20859/#post-122101

 

[DJBenz]

Thank you. I will use the ini entry to resolve this for the moment.

 

[Wuhua Chen]

Thanks for report.
This warning has been fixed in Joomla4 version before, since most joomla3 runs PHP7, now I fixed it in joomla3:
https://github.com/litespeedtech/lscache-joomla/commit/eea5988a3715b1ca06e53a09d85a6eee242a7e51
also updated latest joomla3 package:
https://github.com/litespeedtech/lscache-joomla/blob/master/Joomla3/package/lscache-latest.zip

 

[DJBenz]

Thanks. I've installed the latest version so I'll let you know how it goes.

 

[DJBenz]

Now I'm getting this:

Undefined array key "HTTP_USER_AGENT" in public_html/plugins/system/lscache/lscache.php on line 219

 

[serpent_driver]

Now I'm getting this:

Undefined array key "HTTP_USER_AGENT" in public_html/plugins/system/lscache/lscache.php on line 219

Same procedure as before.
This is the result of only limited PHP 8 compatibility, but without any significant functional consequences. You can either ignore this warning or use

ini_set('ignore_repeated_errors', True);

to prevent the repeated writing of this warning until there is an update.

 

[DJBenz]

Same procedure as before.
This is the result of only limited PHP 8 compatibility, but without any significant functional consequences. You can either ignore this warning or use

ini_set('ignore_repeated_errors', True);

to prevent the repeated writing of this warning until there is an update.

Yep, I realise that, the information was for Wuhua Chen, who kindly updated the plugin to solve the first issue.

 

[serpent_driver]

@DJBenz

It shouldn't surprise you if a similar problem occurs again after an update has fixed a problem. Just be consistent and report back if there are any new bugs. Unfortunately, the adjustments to PHP 8.x are tedious. With PHP 8.x, programmers should be guided to program more cleanly.

 

[DJBenz]

@DJBenz

It shouldn't surprise you if a similar problem occurs again after an update has fixed a problem. Just be consistent and report back if there are any new bugs. Unfortunately, the adjustments to PHP 8.x are tedious. With PHP 8.x, programmers should be guided to program more cleanly.

I will do.