Show the 8 bits of a byte in PHP

Question

I was wondering if there is a easy way to display the 8 bits of a byte(or char) in PHP.

For example for ASCII encoding the character \'0\' should return 0011 0000

Answer 1

One more solution, this includes space between 4 digits:

$char = 0;
echo chunk_split(sprintf('%08b', ord($char)), 4, ' ');