variable variable not working with $_GET array

WaltherD

I have a problem with the following piece of code:

function get_var( $vars ) {
	echo $_GET['menuID'],"<br>";
                            echo $vars[1],"<br>";
	$str = $$vars[1];
    return $str;
}

It returns:

279
$GET['menuID']
Warning: Undefined variable: $GET['menuID']
---cut---

I've tried with ${$vars[1]} and still the same thing.

Does anyone know the answer to this one?

best regards,
WaltherD

diego25

Take a look at the warning at the bottom of this page:

http://www.php.net/manual/en/print/language.variables.variable.php

Diego

WaltherD

I didn't read the small print!

It basicly states that what I want to be able to do - can not be done <🙁

So - how do I then reference a superglobal variable - in order to use any constructs like:

$vars = Array( [1] => "$_GET['menuID']" );
$some_var = get_var( $vars );

function get_var( $vars ) {

 $ref_var = & $vars[1];
 return $$ref_var;

}

The above example is not the answer! It keeps telling me:

Warning: Undefined variable: $_GET['menuID']

(but nice of you to reply, Diego)

/Walther

diego25

There are ways around it (I've been trying) but they all look weird 🙂 Can you tell us why you're doing this and maybe we can come up with some other type of solution?

Diego