<?php
// your code goes here
$var = function ($var) {
};
$arr = [10,20,30,40,50];
echo $var($arr).'<br/>';
PD9waHAKCi8vIHlvdXIgY29kZSBnb2VzIGhlcmUKJHZhciA9IGZ1bmN0aW9uICgkdmFyKSB7CiAgICByZXR1cm4gYXJyYXlfc3VtKCR2YXIpIC8gY291bnQoJHZhcik7Cn07CiRhcnIgPSBbMTAsMjAsMzAsNDAsNTBdOwplY2hvICR2YXIoJGFycikuJzxici8+Jzs=