[PHP] call_user_func and call-time pass-by-reference

[Andrew Nagy]

How do you use the call_user_func function with call-time 
pass-by-reference deprecation?

For example:
function fun(&$arg) {
  $arg++;
}
$var = 0;
call_user_func("fun", $var);
echo $var; //echoes 0 instead of 1
Is their anyway to do this:
call_user_func("fun", &$var);
Thanks for any help with this!
Andrew Nagy
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