Created
March 4, 2014 03:01
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Check for password strength, password should be at least n characters, contain at least one number, contain at least one lowercase letter, contain at least one uppercase letter, contain at least one special character.
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<?php | |
$password_length = 8; | |
function password_strength($password) { | |
$returnVal = True; | |
if ( strlen($password) < $password_length ) { | |
$returnVal = False; | |
} | |
if ( !preg_match("#[0-9]+#", $password) ) { | |
$returnVal = False; | |
} | |
if ( !preg_match("#[a-z]+#", $password) ) { | |
$returnVal = False; | |
} | |
if ( !preg_match("#[A-Z]+#", $password) ) { | |
$returnVal = False; | |
} | |
if ( !preg_match("/[\'^£$%&*()}{@#~?><>,|=_+!-]/", $password) ) { | |
$returnVal = False; | |
} | |
return $returnVal; | |
} | |
?> |
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It must contain between 8 and 32 characters. Use only characters from the following set: ! # $ % & ( ) * + , - . / 0123456789 : ; < = > ? @ ABCDEFGHIJKLMNOPQRSTUVWXYZ [ \ ] _ ` abcdefghijklmnopqrstuvwxyz { | } ~
It must contain at least 1 capital letter(s) (ABCDEFGHIJKLMNOPQRSTUVWXYZ).
It must contain at least 1 numeric character(s) (0123456789).
It must not contain more than 2 identical consecutive characters (AAA, iiii, $$$$$ ...).
It must not contain your user name.
It must not contain your email address.
It must not contain your first name.
It must not contain your last name