Pacman

What if I do this? This code will work? oO

function get_posts_count_from_last_24h($post_type ='post') {

    $cached = get_transient( 'np_count' );
    if ( $cached !== false )
        return $cached;

    global $wpdb;

    $numposts = $wpdb->get_var(
        $wpdb->prepare(
            "SELECT COUNT(ID) ".
            "FROM {$wpdb->posts} ".
            "WHERE ".
                "post_status='publish' ".
                "AND post_type= %s ".
                "AND post_date> %s",
            $post_type, date('Y-m-d H:i:s', strtotime('-24 hours'))
        )
    );

    set_transient( 'np_count', $numposts, 1 * HOUR_IN_SECONDS );

    return $numposts;
}