Customizing Baidu Map Styles with PHP and Baidu Map API

Baidu Map API is a developer interface offered by Baidu that allows integration of map functionalities into websites or applications, supporting features such as map display, geocoding, and search.

Step 1: Apply for a Baidu Map API Key

Register an account on the Baidu Open Platform, create an application, and obtain the API key from the application details page.

Step 2: Include the Baidu Map API Library

Download the library files from the Baidu Map Open Platform documentation and place them in an appropriate location within your project.

Step 3: Create a Map Container

In your HTML file, add a container element where the map will be displayed.

<div id="map" style="width: 100%; height: 500px;"></div>

Step 4: Initialize the Map Object

In a PHP script, use the BMap class provided by the Baidu Map API to create and configure a map instance.

<?php
require_once 'path_to_baidumap_api/BMap.php';

$map = new BMap();
$map->set_ak('your_api_key');
?>

The path_to_baidumap_api placeholder should be replaced with the actual path to the library files, and your_api_key with the key you obtained.

Step 5: Set Map Style

Use the setMapStyle method of the Map class to apply a custom style defined in a JSON string.

<?php
$styleJson = '{
    "style": "bluish",
    "feature": {
        "road": {"show": false},
        "building": {"show": false},
        "poi": {"show": false}
    }
}';

$map->setMapStyle($styleJson);
?>

The styleJson variable contains a JSON‑formatted style that sets a bluish theme and hides roads, buildings, and points of interest.

Step 6: Render the Map

Finally, call the renderMap method to display the map inside the previously created container.

<?php
$map->renderMap('map');
?>

The string map must match the id attribute of the container defined in Step 3.

Conclusion

By following these six steps—obtaining an API key, including the library, creating a container, initializing the map object, setting a custom style, and rendering the map—you can customize Baidu Maps using PHP to achieve personalized map displays.