Question

I am having a bit of trouble figuring this one out, basically I have a string being created dynamically and passed through a couple functions, I want to add a “$” to the front of the string to make it a variable and then evaluate it as such with isset()…

Am I missing an obvious way to do this?

Answer 1

You are looking for variable variable:

$string = 'b';
$b = 'Test';
if(isset($$string)) {
   // do stuff
}

Note that this is usually a frowned upon practice as in a larger code base, you’ll get headache later trying to figure out where $b is coming from