User:
Title: lendiff
Content:
function get_tbs_diff($a, $b)
{
$a = strtolower($a);
$b = strtolower($b);
$a = preg_replace('/[^a-z]/', '', $a);
$b = preg_replace('/[^a-z]/', '', $b);
$la = strlen($a);
$lb = strlen($b);
$min = min([$la, $lb]);
$diff = 0;
for ($i = 0; $i < $min; $i++)
{
$oa = ord($a);
$ob = ord($b);
$d = abs($oa - $ob);
$diff += $d;
}
$diff += abs($la - $lb);
return $diff;
}