Unable to call php function

Hi,

I have a strange issue…im unble to call a function using a variable as the function name for example…

function myfunction(){
echo ‘test’;
}

$function = ‘myfunction’;

$function();

This code works fine on a normal web server but when running in a scriptcase app, it doesnt work.

The error i get is

Fatal error : Uncaught Error: Call to undefined function myfunction()

anyone seen this and know how to get around it?

cheers