If you want to get the arguments by reference, instead of func_get_args() you can simply use
<?php
function args_byref(&...$args) {
// Modify the $args array here
}
?>
Credits should go to Markus Malkusch for pointing this out on Stackoverflow.
https://stackoverflow.com/a/29181826/1426064