- mb_convert_encoding: documentation ( source)
- var_dump: documentation ( source)
- preg_match_all: documentation ( source)
- unpack: documentation ( source)
<?php
preg_match_all('/[\x{0080}-\x{ffff}]/u', 'café åäö', $matches, PREG_OFFSET_CAPTURE);
var_dump($matches, unpack('n', mb_convert_encoding('é', 'UCS-2BE', 'UTF-8')));