Variable variables

Question

<?php
$a = 'hello';
$hello = "Hi!";
echo $a;
?>

// why does this print out Hi! And not the hello part

Answer 1

Using two $ means getting the variable with the name of the text written in variable a
It translate to:
$a = $hello = ‘hi’

Answer 2

Well if you want to use a different variable depending on some circumstance, you can assign it later on the name to a string later on and reference it using two dollar signs

Answer 3

Still doesn’t really make since to me

Answer 4

Why assign a with hello

Answer 5

Why would you use so many $$ like you did on that code when you already determined the variables

Answer 6

Ohhh I understand now