Function Reference: geodir_get_map_cache

Summary

Get the map cache if it exists.

Parameters

$cache

(string) (required) The JSON string cache if exists.

Default: None

Return Values

(string)

Change Log

Since: 1.6.22

Source File

geodir_get_map_cache() is located in geodirectory-functions/map-functions/get_markers.php [Line: 24]

Source Code

function geodir_get_map_cache($cache){

    // if a search is going on then dont even try to check for cache.
    if(isset($_REQUEST['search']) && !empty($_REQUEST['search'])){
        return $cache;
    }

    $url_params = array();
    $url_params[] = isset($_REQUEST['cat_id']) ? $_REQUEST['cat_id'] : '';
    $url_params[] = isset($_REQUEST['zl']) ? $_REQUEST['zl'] : '';
    $url_params[] = isset($_REQUEST['gd_map_h']) ? $_REQUEST['gd_map_h'] : '';
    $url_params[] = isset($_REQUEST['gd_map_w']) ? $_REQUEST['gd_map_w'] : '';
    $url_params[] = isset($_REQUEST['gd_posttype']) ? $_REQUEST['gd_posttype'] : '';
    $url_params[] = isset($_REQUEST['lat_ne']) ? $_REQUEST['lat_ne'] : '';
    $url_params[] = isset($_REQUEST['lon_ne']) ? $_REQUEST['lon_ne'] : '';
    $url_params[] = isset($_REQUEST['lat_sw']) ? $_REQUEST['lat_sw'] : '';
    $url_params[] = isset($_REQUEST['lon_sw']) ? $_REQUEST['lon_sw'] : '';
    $url_params[] = isset($_REQUEST['gd_country']) ? $_REQUEST['gd_country'] : '';
    $url_params[] = isset($_REQUEST['gd_region']) ? $_REQUEST['gd_region'] : '';
    $url_params[] = isset($_REQUEST['gd_city']) ? $_REQUEST['gd_city'] : '';
    $url_params[] = isset($_REQUEST['gd_neighbourhood']) ? $_REQUEST['gd_neighbourhood'] : '';

    $file_name = sanitize_file_name( md5( implode("-",$url_params) )  );

    $blog_id = get_current_blog_id();
    if($blog_id>1){
        $file_name = $blog_id."_".$file_name;
    }

    $file_path = realpath(dirname(__FILE__))."/map-cache/";


    if(file_exists($file_path.$file_name.".json")){


        ob_start();
        readfile($file_path.$file_name.".json"); // readfile is quicker then file get contents
        $content = ob_get_clean();

        // do the cache delete stuff
        $cache_time = get_option('geodir_map_cache');
        if(!$cache_time){
            $cache_time = time();
            update_option('geodir_map_cache', $cache_time);
        }

        if((time() - $cache_time) > 86400){ // delete the cache every 24 hours
            geodir_delete_map_cache();
        }

        return $content;

    }

    return $cache;
}