How to get a variable name as a string in PHP?

Question

Say i have this PHP code:

$FooBar = \"a string\";

i then need a function like this:

print_var_name($FooBar);

Answer 1

I was looking for this but just decided to pass the name in, I usually have the name in the clipboard anyway.

function VarTest($my_var,$my_var_name){
    echo '$'.$my_var_name.': '.$my_var.'
';
}

$fruit='apple';
VarTest($fruit,'fruit');