Question

How do I prepend the $ sign to a string to make it a variable?

Eg: 
$consumer = array()
$industrial = array()//These 2 are in a separate include file.

$var = $_GET['val'] // value here is 'consumer'

function ('$'.$var,$bar) //I'm trying to make consumer -> $consumer

Answer 1

$consumer = array()
$industrial = array()//These 2 are in a separate include file.

$var = $_GET['val'] // value here is 'consumer'

function ($$var,$bar) //I'm trying to make consumer -> $consumer

Don’t forget to check that the value of $_GET[‘val’] is a value you (the programmer) expect and nothing else.