PHP: Variable in a function name

Question

I want to trigger a function based on a variable.

function sound_dog() { return \'woof\'; }
function sound_cow() { return \'moo\'; }

$animal = \'cow\';
print soun         


        

Answer 1

http://php.net/manual/en/functions.variable-functions.php

To do your example, you'd do

$animal_function = "sound_$animal";
$animal_function();