How to make require validation with OR in yii?

Question

Yii

How to use require validator with OR in Yii model.
For example, it requires a person to enter a phone number or email address, but one or both is required.

Answer 1

public function rules() {
    return array(
        array('username','either','other'=>'email'),
    );
}
public function either($attribute_name, $params)
{
    $field1 = $this->getAttributeLabel($attribute_name);
    $field2 = $this->getAttributeLabel($params['other']);
    if (empty($this->$attribute_name) && empty($this->$params['other'])) {
        $this->addError($attribute_name, Yii::t('user', "either {$field1} or {$field2} is required."));
        return false;
    }
    return true;
}

Answer 2

https://github.com/yiisoft/yii2/blob/master/docs/g...