Cannot validate checkbox type form field

Hello

Although I read Advanced Topics time again, I still can’t work out how a checkbox field can be validated.

As far as the checkbox is concerned, the code I entered in theme-my-login.php is as follows:

function add_tml_registration_form_fields() {
 tml_add_form_field( 'register', 'agreement', array(
  'type'     => 'checkbox',
  'label'    => __( 'sample text' ),
  'value'    => tml_get_request_value( 'agreement', 'post' ),
  'id'       => 'agreement',
  'priority' => 15,
 ) );
}

function validate_tml_registration_form_fields( $errors ) {
 if ( ( $_POST['agreement'] == '') ) {
		$errors->add( 'empty_agreement', '<strong>ERROR</strong>: To register with us, you are required to agree to our Terms and Conditions.' );
 }
}

Please provide me with suggestions to get the validation working.

• This topic was modified 6 years, 9 months ago by eadwig.