- var_dump: documentation ( source)
- pack: documentation ( source)
- unpack: documentation ( source)
<?php
// $packed = "hoge\0\0"
var_dump($packed = pack('a6', ''));
// PHP 5.4 $data = "hoge"
// PHP 5.5 $data = "hoge\0\0"
var_dump($data = unpack('a6', $packed));
// PHP 5.5 $data = "hoge"
var_dump($data = unpack('Z6', $packed));