Bob, call_user_func is not call_user_func_array > > call_user_func($func) is the same as $func(). In any way. >
Not in any way. call_user_func accepts any expression for the function to
call. `$func()` only accepts callables.
Example:
call_user_func(getCallback());
getCallback()(); // <-- syntax error.
You *could* solve it with variable foo:
${'_'.!$_=getCallback()}();
But I'd stick to call_user_func()...
