I'm new to PHP programming and I have a question regarding valid variable names. I've been trying to learn the basics of PHP and I want to make sure I understand the rules for naming variables correctly.
From what I've read, PHP variable names must start with a dollar sign ($), followed by a letter or underscore. They can then be followed by any combination of letters, numbers, or underscores. It is important to note that variable names are case-sensitive, so $myVar and $myvar would be considered different variables.
Is my understanding correct? I just want to make sure I'm on the right track and not miss any important details. Are there any additional restrictions or conventions that I should be aware of when naming my variables in PHP?
Any help or advice on this topic would be greatly appreciated!
Thanks in advance!