<?php // This function converts a number to a string of letters.. Ex: 1 is convert into A, 2 is B, 26 is Z, 27 is AA, 28 is AB, etc. if (!function_exists('tablesome_num2alpha')) { function tablesome_num2alpha($n) { for ($r = ''; $n >= 0; $n = intval($n / 26) - 1) { $r = chr($n % 26 + 0x41) . $r; } return $r; } }