Increment letters like number by certain value in php

Question

In php if I writ

$c=\'A\';
$c++; it increments to \'B\' but if I want to increment it with 2 ,3 or more , eg: $c+2 or $c+3 ,

Answer 1

If you want to increment the character by 2, adding won't work.

Try this instead:

echo chr(ord($c) + 2)

Explanation:

1. Calculate the ascii value of $c using ord($c)
2. Add the ascii value by 2.
3. Convert this achii value to string using chr() function.

Refer to ord() and chr() functions.

Note: As Mark Baker specifies, this will only work to Z and not beyond.