Discussion on: Daily Challenge #206 - Pound Means Backspace

function cleanString(string $text)
{
    $result = '';
    for ($i = 0; $i < strlen($text); $i++){
        if($text[$i] === '#') {
            if(strlen($result) > 0) {
                $result = substr($result, 0, -1);
            }
        } else {
            $result .= $text[$i];
        }
    }
    return $result;
}