How to define array of bytes in PHP

Question

I need help with PHP, I need to define byte array and to change values of some bytes ( for example set 3rd byte to 16 or 17 and so on ). How to define array of bytes in PHP ?

Answer 1

I am not entirely sure what you mean when you say byte. But try this:

<?php
$bytes = array(1, 50, 39, 21, 93, 20);
$bytes[2] = 16; // Changes 3rd byte to 16