Ok, so for example if someone is entering a username and I want to make it lowercase before OR at the beginning of validation how can I do this?
I know you can do something similar with trim such as:
[['company_name', 'first_name', 'last_name', 'email', 'username', 'password', 'password2'], 'trim'],
But I assume this doesn’t support any function?
So, I would want to run the strtolower function on the username, what would be the way to go about doing this? Would I need to use the beforeValidate method or can I do something like this?
['username', 'makeLower']
public function makeLower($attribute, $params) {
$this->$attribute = strtolower($this->$attribute);
}