Need to Add regex (php) for at least 1 special char

Question

$uppercase = preg_match('@[A-Z]@', $motpass);
$lowercase = preg_match('@[a-z]@', $motpass);
$number    = preg_match('@[0-9]@', $motpass);
$special   = preg_match('@[@#$%^&+=]@', $motpass);  <---( PROBLEM HERE )

if (!$uppercase || !$lowercase || !$number || !$special || strlen($motpass) < 8)


{

    $motpass_error='NO GOOD';
    $error=true;
}
    else
{
    $motpass = $_POST['motpass'];
}

Im looking for regex (All specials Chararcter or Most )

Thanks in advance!

Too many unnecessary checks. You can validate your password strength in one go, using a single (but complex) `preg_match()` pattern. Look [here](http://stackoverflow.com/questions/5142103/regex-for-password-strength), for instance, or try googling "strong password regex" for more examples. — Sergey Vidusov, Feb 18 '16 at 05:17
Yes, but eventually I would like to add custom error msg for each condition. — Fayz I, Feb 18 '16 at 17:39
ex: uppercase ----> echo; your pass needs at least one upercase , Will this be possible with one single pattern. thanks! — Fayz I, Feb 18 '16 at 17:40

score 1 · Answer 1 · answered Feb 18 '16 at 04:58

You can try code like below.

$uppercase = preg_match('@[A-Z]@', $motpass);
$lowercase = preg_match('@[a-z]@', $motpass);
$number    = preg_match('@[0-9]@', $motpass);
$special   = preg_match('/[^a-zA-Z\d]/', $string);

OR

$uppercase = preg_match('@[A-Z]@', $motpass);
$lowercase = preg_match('@[a-z]@', $motpass);
$number    = preg_match('@[0-9]@', $motpass);
$special   = preg_match('/^(?=.*[a-z])(?=.*[A-Z])(?=.*\d)(?=.*[$%^&]).*$/');

if (!$uppercase || !$lowercase || !$number || !$special || strlen($motpass) < 8)


{

    $motpass_error='NO GOOD';
    $error=true;
}
    else
{
    $motpass = $_POST['motpass'];
}

score 1 · Accepted Answer · answered Feb 18 '16 at 05:00

1

Try this

$special   = preg_match('/[^a-zA-Z\d]/', $motopass);

answered Feb 18 '16 at 05:00

naseeba c

1,040
2
14
30

Sandeep · Answer 3 · 2016-02-19T18:44:47.203

1

'\w' matches word(alphabet or numeric) character where as '\W' matches non-word (special characters) character.

So using non-word character makes simple. Try below regex:

$special   = preg_match('/\W+/', $string);

'+' in expression represent one or more word characters.

edited Feb 19 '16 at 18:44

answered Feb 18 '16 at 06:47

Sandeep

51
3

Need to Add regex (php) for at least 1 special char

3 Answers3