PHP Validate Password Strength using PHP November 2, 2022 / January 2, 2025 by Philip Newman | 1 Comment on Validate Password Strength using PHP When the user provides their account password, it is always recommended to validate the input. Password strength validation is very useful to check whether the password is strong. A strong password makes the user’s account secure and helps to prevent account hacking. Using Regex (Regular Expression), you can easily validate the password strength in PHP. […] Read more » password PHP PHP 8.1 preg_match