Check if string has any character from another string in PHP

Question

I want to make sure my users passwords contain at least one, a-z, one A-Z, one 0-9 and one special character.

I thought the best way of doing this would be to set variables like this:

$lower_list = 'abcdefghijklmnopqrstuvwxyz';
$upper_list = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ';
$numbers_list = '0123456789';
$special_list = '!"£$%^&*(){}[]=-`¬¦\|/?.>,<#~\'@;:*-+';

Whats the function I need? Or is there a better way of doing it? I know I could use preg_match but I have no idea how to write the regex.

If it is PHP, I'd suggest doing `preg_match()` with the regex pattern as `/[\d[:lower:][:upper:][:punct:]]/` — hjpotter92, Mar 11 '13 at 09:21
check this link http://www.cafewebmaster.com/check-password-strength-safety-php-and-regex — Ankit Chauhan, Mar 11 '13 at 09:23

score 1 · Answer 1 · answered Mar 11 '13 at 09:27

1

maybe this can help:

$pattern = "/^.*(?=.*\d)(?=.*[a-z])(?=.*[A-Z])(?=.*\W).*$/";

answered Mar 11 '13 at 09:27

Bojan Kovacevic

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Check if string has any character from another string in PHP

1 Answers1