Question

$ch is a character.

I need to convert it into 2 numbers like that (example):

$ch = 'A'       =>      ASCII code: 0x41
                =>      Binary: 0100 0001
                =>      {4, 1}

What is the easiest and fastest method to achieve this ?

Answer 1

You can use the ord() function to get the ASCII value and then decbin and dechex to convert it to binary and hex formats

http://www.php.net/manual/en/function.ord.php
http://www.php.net/manual/en/function.decbin.php
http://www.php.net/manual/en/function.dechex.php