- array_map: documentation ( source)
- print_r: documentation ( source)
- str_split: documentation ( source)
<?php
$KEY_BASE = str_split("0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ");
print_r($KEY_BASE);
$BASE = 62;
$num = 11112887;
$num = intval($num);
$num = array_map('intval',str_split($num));
$result = '';
$remainder = '';
foreach ($num as $digit) {
$remainder = $digit%$BASE;
$result.=$KEY_BASE[$remainder];
//echo $digit;
}
echo $result;