I am relatively new to PHP and I've come across a doubt about initializing or declaring variables in PHP. I have some experience with other programming languages where it is necessary to declare variables before using them. However, I've seen some PHP code examples where variables are used directly without any prior declaration or initialization.
So, I'm a bit confused and would like to understand if it is necessary to declare or initialize variables in PHP before using them. Can someone please shed some light on this?
Thank you in advance!