Increment character works but adding doesn't. Why?
php
Solution
PHP is not C, so `'a' + 1` is not `'b'`.
`'a'` in a numeric context is `0`, and `0+1 = 1`.
php> echo (int)'a';
0
The fact that the postfix/prefix increment operators do work like if it was a C char seems to be a nasty "feature" of PHP. Especially since the decrement operators are a no-op in this case.
When you increment `'z'` it gets even worse:
php> $a = 'z';
php> echo ++$a
aa
Problem
``` $a = 'a'; print ($a+1); print ($a++); print $a; ``` The output is: `1 a b` So it is clear that increment operator did its job but I don't understand why output is '1' in case `$a+1`. Can anyone explain?