I'm fairly new to PHP and I'm working on a script where I need to check if a variable is null. I'm not sure how to go about doing this. Can someone please guide me?
Here's a bit of context to help you understand my query: I have a form on my website where users can enter their information. I'm storing that information in variables, and I want to check if any of those variables are empty or null before proceeding further in the script.
Thanks in advance for your help!