Online PHP editor | refs for U0lF9

<?php function base26($value) { $name = ''; for ($exponent = 0; pow(26, $exponent) <= $value; $exponent++) { $digitWeight = intval(pow(26, $exponent)); $remainder = $value % intval(pow(26, $exponent + 1)); $digitValue = intval($remainder / $digitWeight); if (0 == $digitValue) { $digitValue = 26; } $ascii = 64 + $digitValue; $name = chr($ascii) . $name; echo sprintf("digitValue: %d, ascii: %d, value: %d, remainder: %d\n", $digitValue, $ascii, $value, $remainder); $value -= $digitValue; } return $name; } for ($i = 1; $i < 28; $i++) { echo $i . "->" . base26($i) . "\n"; } foreach (array(51, 52, 53, 77, 78, 79) as $i) { echo $i . "->" . base26($i) . "\n"; }