I had a difficult time solving this bug, and finally solved it. I'm posting it here to help others who might be struggling with the same situation.
This code is from the Simple PHP Login System, Lesson 17 & 18.
Machine: Windows 10
PHP version: 7.4.9
Code Editor: VS Code
Here is my error notice:
Notice: Only variables should be passed by reference in C:\wamp64\www\phplogin-parts17-18-projectfiles\register.php on line 144
I got that error message when I tried to register a member.
The problem lies in LI