WP Travel trip available or not filter.

Active Since v3.1.3

Source

File: /inc/helpers.php
Used by: /inc/helpers.php

Parameters
$availability, $trip_id, $price_key, $start_date

Example:

function prefix_wp_travel_trip_availability( $availability, $trip_id, $price_key, $start_date ) {
    return true;
}
add_filter( 'wp_travel_trip_availability', 'prefix_wp_travel_trip_availability', 12, 4 );