Yii2 validate Bank Account number and Routing number - yii2

Question

I want to validate Bank Account number(123456789) and Routing number(434344343),
with custom message=>Please enter 12 digit valid account number.(000123456789)
I used number validator, integer but not working as I expecting.
Validator should checks values are numbers and also numbers length.
I check this documentation here tutorial-core-validators
public function rules()
{
return [
[['accountnumber'], 'number', 'min' => 12, 'max'=>12],// not wokred
[['routingnumber'], 'number', 'min' => 9, 'max'=>9], // not wokred
// then I used
[['accountnumber', 'routingnumber', ], 'integer']
]
}
Any suggession?

Answer 1

The min and max parameters are for the value, not the lenght, maybe you should save as a string.
['accountnumber', 'string', 'length' => [12, 12]
And also add a regular expression:
['accountnumber', 'match', 'pattern' => '/^[0-9]*$/i']

Answer 2

Try this:
public function rules()
{
return [
[['accountnumber'], 'string', 'min' => 12, 'max'=>12, 'message' => "Please enter 12 digit valid account number"],
[['routingnumber'], 'string', 'min' => 9, 'max'=>9],
[['accountnumber', 'routingnumber', ], 'integer'],
]
}

Answer 3

Minimum, Maximum Number Validation
public function rules(){
return [
[['accountnumber'],'number','min'=>10],
[['accountnumber'],'number','max'=>100],
[['accountnumber'],'number','min'=>10,'max'=>100],
];
}
Minimum, Maximum String Validation
public function rules(){
return [
[['min_string'],'string','min'=>10],
[['max_string'],'string','max'=>10],
[['min_max_string'],'string','min'=>5,'max'=>10],
['min_max_string2', 'string', 'length' => [4, 10]],
];
}
Custom Validation
public function rules(){
return [
['custom_validation','custom_function_validation', 'values'=>['One', 'Two']],
];
}
public function custom_function_validation($attribute, $params){
// add custom validation
if (!in_array($this->$attribute, $params['values']))
$this->addError($attribute,'Custom Validation Error');
}