Decrement character with php

Question

Why is it that it\'s ok to increment character but not decrement with PHP?

PHP

Answer 1

There is no simple way, especially if you start with multi-character strings like 'AA'.

As far as I can ascertain, the PHP Internals team couldn't decide what to do when

$x = 'A';
$x--;

so they simply decided not to bother implementing the character decrementor logic