How I can give regex pattern in yii1 when creating any user? - yii

Question

I want to give a pattern for password. The password must be at least 8 characters long and should contain one uppercase letter, one lowercase letter and one number. I am new in yii1. Please help me.

Answer 1

Try this way:
public function rules() {
return array(
array('username, password', 'required'),
array(
'password',
'match', 'pattern' => '/^[\*a-zA-Z0-9]{6,14}$/',
'message' => 'Invalid characters in password.',
),
array('password', 'length', 'min'=>8),
);
}
You can add any type of Pattern in above code.

Answer 2

It seems you can refer some PHP password validation code as follow,
<?php
$pwd = $_POST['pwd'];
if( strlen($pwd) < 8 ) {
$error .= "Password too short!
";
}
if( strlen($pwd) > 20 ) {
$error .= "Password too long!
";
}
if( strlen($pwd) < 8 ) {
$error .= "Password too short!
";
}
if( !preg_match("#[0-9]+#", $pwd) ) {
$error .= "Password must include at least one number!
";
}
if( !preg_match("#[a-z]+#", $pwd) ) {
$error .= "Password must include at least one letter!
";
}
if( !preg_match("#[A-Z]+#", $pwd) ) {
$error .= "Password must include at least one CAPS!
";
}
if( !preg_match("#\W+#", $pwd) ) {
$error .= "Password must include at least one symbol!
";
}
if($error){
echo "Password validation failure(your choise is weak): $error";
} else {
echo "Your password is strong.";
}
For more detail please refer this post

Answer 3

It can be done by Yii custom validation.
Try below this one. i hope the custom validation may useful to your criteria
public function rules()
{
return array(
array('username, password', 'required'),
array('password', 'length', 'min'=>8, 'max'=>16),
// custom validation
array('password', 'checkStrength', 'password'),
);
}
public function checkStrength($attr)
{
$policy1 = preg_match('/[A-Z]/', $this->$attr) ? 1 : 0 ;
$policy2 = preg_match('/[a-z]/', $this->$attr) ? 1 : 0 ;
$policy3 = preg_match('/[0-9]/', $this->$attr) ? 1 : 0 ;
$policy4 = preg_match('/[\'\/~`\!##\$%\^&\*\(\)_\-\+=\{\}\[\]\|;:\<\>,\.\?]/', $this->$attr) ? 1 : 0 ;
if(!$policy1)
$this->addError('password', $this->getAttributeLabel($attr) . ' must contains atleast one upper case character.');
if(!$policy2)
$this->addError('password', $this->getAttributeLabel($attr) . ' must contains atleast one lower case character.');
if(!$policy3)
$this->addError('password', $this->getAttributeLabel($attr) . ' must contains atleast one number.');
if(!$policy4)
$this->addError('password', $this->getAttributeLabel($attr) . ' must contains atleast one special character (/~`!##$%^&*()_-+={}[]|;:<>,.?)');
}