errorSummary() public static method
Generates a summary of the validation errors. If there is no validation error, an empty error summary markup will still be generated, but it will be hidden.
public static string errorSummary ( $models, $options = [] )$models
yii\base\Model|yii\base\Model[]
The model(s) whose validation errors are to be displayed. $options array
The tag options in terms of name-value pairs. The following options are specially handled: header: string, the header HTML