Number slider validation for single page forms

/**

 * Validate Number Slider on submit and require a non-zero value.

 *

 * Runs after the form is submitted and before processing completes.

 *

 * @param int   $field_id     Current field ID being validated.

 * @param mixed $field_submit Submitted value.

 * @param array $form_data    Form settings and data.

 */

add_action('wpforms_process_validate_number-slider', function($field_id, $field_submit, $form_data){

	$form_id = 100; // Change the form ID to match the ID of your form 

	$numberslider_id = 1; // Change the number slider ID to match the ID of the Number Slider

	if ( $field_id != $numberslider_id && $form_data['id'] != $form_id ) {

		return;

	}

	// Print error if submitted value is equal to 0

	if ($field_submit == 0) {

		wpforms()->process->errors[ $form_data['id'] ][ $numberslider_id ] = 'Please select a number that is not equal to 0'; //You may change this to the error message you would like to display

	}

}, 10, 3);