I've been diving into PHP recently, and I've come across something that's been puzzling me. Can someone help me understand the difference between `$message` and `$$message`?
I know that in PHP, you can declare variables using the dollar sign (`$`) followed by the variable name. However, I'm confused about what happens when you add an extra dollar sign before the variable name.
From what I've gathered, it seems that `$message` is a regular variable that can hold a value, like a string or a number. But what about `$$message`? Does it have any special meaning?
I'd really appreciate it if someone could clarify this for me. Thanks in advance for your help!