I have no idea how to do this, and I don't know why it would be helpful, but it was just one of those questions I had. Let's start with some code.

PHP Code:

//Some variables
$something_variable = "something variable";
$another_variable = "another variable";
$yet_another_variable = "yet another variable!!"; 


I have 3 variables here. What if I wanted to call a variable, based on user's direct input like this, instead of using an if statement?

PHP Code:

//POST data says the user entered 'something' into a box.
//I want to echo $something_variable, because the variable's name has 'something' in it. 


How would I do that? Thanks

You can call a var by a string:

PHP Code:

if ($varname = $_GET['varname'] . '_variable' AND isset($$varname)) echo $$varname; 


Thanks, mrgraphic!