Is it possible to pass parameters by reference using call_user_func_array()?

Question

When using call_user_func_array() I want to pass a parameter by reference. How would I do this. For example

function toBeCalled( &$paramet         


        

Answer 1

This works by double referencing,the original variable is modified when the $parameter variable is modified.

$a = 2;
$a = toBeCalled($a);
echo $a //50

function toBeCalled( &$par_ref ) {
    $parameter = &$par_ref;
    $parameter = $parameter*25;
}