note 89997 added to function.preg-match-all

i have made up a simple function to extract a number from a string.. I am not sure how good it is, but it works. It gets only the numbers 0-9, the "-", " ", "(", ")", "." characters.. This is as far as I know the most widely used characters for a Phone number. function clean_phone_number($phone) { if (!empty($phone)) { //var_dump($phone); preg_match_all('/[0-9\(\)+.\- ]/s', $phone, $cleaned); foreach($cleaned[0] as $k=>$v) { $ready .= $v; } var_dump($ready); die; if (mb_strlen($cleaned) > 4 && mb_strlen($cleaned) <=25) { return $cleaned; } else { return false; } } return false; } ---- Server IP: 89.190.194.18 Probable Submitter: 87.121.44.186 ---- Manual Page -- http://www.php.net/manual/en/function.preg-match-all.php Edit -- https://master.php.net/note/edit/89997 Del: integrated -- https://master.php.net/note/delete/89997/integrated Del: useless -- https://master.php.net/note/delete/89997/useless Del: bad code -- https://master.php.net/note/delete/89997/bad+code Del: spam -- https://master.php.net/note/delete/89997/spam Del: non-english -- https://master.php.net/note/delete/89997/non-english Del: in docs -- https://master.php.net/note/delete/89997/in+docs Del: other reasons-- https://master.php.net/note/delete/89997 Reject -- https://master.php.net/note/reject/89997 Search -- https://master.php.net/manage/user-notes.php