Multiple variables inside functions

I'm trying to create a function that will display a piece of code that contains a variable outside of the function (IE Global variable)

For instance, ideally this is what I'm trying to do:

//Multiple different variables
$first = "John";
$last = "Doe";
$age = "36";
$eyes = "Blue";

//Function to Display formatted variable
function displayVariable($spec, $var){
     if (isset($var)){     
          echo $spec.': '.$var.'<br />;
     }
}

displayVariable("First Name",$first);
displayVariable("Last Name",$last);

PHP:

and get it to output:

First Name: John
Last Name: Doe

Code (markup):

without having to do tons of global variables. Am I on the right track?

 

yeh absolutely correct mate

 

That's the way to go - global variables are (usually) Not A Good Idea.

You might want to read here:
http://php.net/manual/en/language.functions.php
to know a bit more how to get the maximum out of functions

Happy coding!