如何在ajax请求中运行do_shortcode？

Question

我在餐馆店工作。我的客户需要通过起诉GPS显示附近的餐馆。所以我认为使用ajax和javascript但我的地图短代码没有运行。这是我的HTML和javascript代码。

<p id="demo">...</p>
            <script>
                var x = document.getElementById("demo");


                    if (navigator.geolocation) {
                        navigator.geolocation.getCurrentPosition(showPosition);
                    } else { 
                        x.innerHTML = "Geolocation is not supported by this browser.";
                    }
                function closest (num, arr) {
                    var mid;
                    var lo = 0;
                    var hi = arr.length - 1;
                    while (hi - lo > 1) {
                        mid = Math.floor ((lo + hi) / 2);
                        if (arr[mid] < num) {
                            lo = mid;
                        } else {
                            hi = mid;
                        }
                    }
                    if (num - arr[lo] <= arr[hi] - num) {
                        return arr[lo];
                    }
                    return arr[hi];
                }
                function showPosition(position) {
                    <?php
                        $jsar = json_encode($lat);
                        echo "var lant = " . $jsar.";\n";
                    ?>
                    var my_lat = position.coords.latitude;
                    var my_lang = position.coords.longitude;
                    var location = closest (my_lat, lant);
                    //alert(location);

                    /*x.innerHTML = "Latitude: " + position.coords.latitude + 
                    "<br>Longitude: " + position.coords.longitude;  */


                jQuery.ajax({
                    type: "POST",

                    url: '<?php echo get_template_directory_uri(); ?>/kitchen.php',
                    data: {
                        firstname: location
                    }
                })
                .done(function (msg) {
                    document.getElementById("demo").innerHTML = msg;
                });

                    }


                </script>

这是我的ajax代码。

<?php require('./../../../wp-blog-header.php'); 
require('./../../../wp-load.php'); 

global $post;
$args = array( 
    'numberposts' => 1,
    'orderby' => 'post_date',
    'order' => 'DESC',
    'post_type' => 'our_kitchen', 
    'post_status' => 'publish',
    'suppress_filters' => true 
    );
$postslist = get_posts( $args );
foreach ( $postslist as $post ) :
    setup_postdata( $post );
    $close_lat = get_post_meta(get_the_ID(), '_wpgmp_metabox_latitude', true);
    $title = $_POST['firstname'];
    if( $title == $close_lat ) { ?>
        <a href="<?php echo get_permalink(); ?>"><?php the_title(); ?></a> <?php
        $maptext = '';
        if (get_post_meta(get_the_ID(), '_wpgmp_metabox_latitude', true) != '') {
            $locationlat = get_post_meta(get_the_ID(), '_wpgmp_metabox_latitude', true);
            $locationlong = get_post_meta(get_the_ID(), '_wpgmp_metabox_longitude', true);
            $maptext.= '[display_map width="100%" height="210" zoom="15" language="en" map_type="ROADMAP" map_draggable="true" marker1="';
            $maptext.= $locationlat;
            $maptext.= ' | ';
            $maptext.= $locationlong;
            $maptext.= ' | ' . get_the_title() . '"]';
            echo do_shortcode($maptext);
        }
    }
    ?>

    <?php
    endforeach; 
wp_reset_postdata();
?> 

提前谢谢。