这是一个可以放入函数中的函数。php。

function get_current_event() {
    global $post;
    $now = get_the_time(\'U\');
    $year = get_the_time(\'Y\');
    if($now >= strtotime("January 1 $year") && $now < strtotime("March 1 $year")) {
       return get_post_meta($post->ID,\'eventA\',true);
    }
    if($now >= strtotime("March 1 $year") && $now < strtotime("October 15 $year")) {
        return get_post_meta($post->ID,\'eventB\',true);
    }
    $nextyear = $year+1;
    if($now >= strtotime("October 15 $year") && $now < strtotime("January 1 $nextyear")) {
        return get_post_meta($post->ID,\'eventC\',true);
    }
    return false;
}

print get_current_event();