Possible Duplicates:
PHP: Get name of variable passed as argument
How to get a variable name as a string in PHP?
If I have
$abc = '123';
function write($var){
}
How would I inside write find out that the variable now represented by $var was called $abc?
It’s not possible. Even pass-by-reference won’t help you. You’ll have to pass the name as a second argument.
But what you have asked is most assuredly not a good solution to your problem.