<?php
                        if(($sel === "luogo") || ($filt === "luogo")) {
                            if((!empty($start)) && (!empty($end))) {
                                $args = get_posts(
                                    array(
                                        'post_type'      => 'post',
                                        'posts_per_page' => -1,
                                        'meta_query'     => array(
                                            array(
                                                'key'     => 'usp-custom-60',
                                                'value'   => $s,
                                                'compare' => 'LIKE'
                                            )
                                        ),
                                        'date_query' => array(
                                            array(
                                                'after'     => strtotime($start),
                                                'before'    => strtotime($end),
                                                'inclusive' => true,
                                            ),
                                        ),
                                    )
                                );
                                $query = new WP_Query( $args );
                                if ( $query->have_posts() ) {
                                    while ( $query->have_posts() ) {
                                        $query->the_post(); ?>
                                                CONTENT
                                        <?php
                                    }
                                }
                            }
                        } ?>