I hope you're all doing well. I have recently come across an issue while working with PHP and I was hoping someone could shed some light on it. I keep encountering the error message "PHP strict standards: Only variables should be passed by reference". As I'm relatively new to PHP, I am not exactly sure what this error means and how to fix it.
Allow me to provide a bit of context. I am working on a project where I need to modify an existing PHP code. Within the code, there is a function call that seems to be causing this error. From what I understand, passing variables by reference can be useful in certain situations, but it seems like this is not allowed in strict standards.
I would really appreciate it if someone could explain to me in simple terms what this error message means. Additionally, I would like to know how I can modify the code to fix this issue and meet the strict standards of PHP.
Thank you in advance for your help and expertise!