- array_map: documentation ( source)
- chr: documentation ( source)
- array_merge: documentation ( source)
- implode: documentation ( source)
- range: documentation ( source)
- sprintf: documentation ( source)
<?php
$range = array_merge(range(ord('a'), ord('z')),range(ord('A'), ord('Z')));?>
<table><?= implode("\n", array_map(function($i) {return sprintf('<tr><td>%s</td></tr>', chr($i));}, $range)); ?></table>