相同的php preg_replace（）在终端和apache中表现不同

Question

This function remove non alphanumeric characters from a given string. This function works great in apache and Ubuntu terminal if i send standard English strings to process. But if i send a string like "VÈLOCATION" its only works in apache.

<?php
function custome_repalce($newname) {
    $newname = preg_replace('~[^\p{L}\p{N}]++~u', '', $newname);
    return $newname;
}

echo custome_repalce("VÈLOCATION");

in browser this shows

VÈLOCATION

but when i run his on ubuntu terminal i get a empty string