Customizing Baidu Map Styles with PHP: A Step-by-Step Guide

Baidu Map API provides developers with map display, geocoding, and search capabilities, and can be customized through code. This guide shows how to use PHP together with the Baidu Map API to create a custom map style.

Step 1: Apply for a Baidu Map API key – Register 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 from the Baidu Map Open Platform documentation and place the extracted files in an appropriate directory within your project.

Step 3: Create a map container – Add an HTML element that will hold the map, for example:

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

Step 4: Initialize the map object – In a PHP script, load the library and create a BMap instance, then set the API key:

<?php
require_once 'path_to_baidumap_api/BMap.php';
$map = new BMap();
$map->set_ak('your_api_key');
?>

Replace path_to_baidumap_api with the actual path to the library and your_api_key with the key obtained in Step 1.

Step 5: Set the map style – Define a JSON string describing the desired style and apply it via setMapStyle :

<?php
$styleJson = '{
    "style": "bluish",
    "feature": {
        "road": {"show": false},
        "building": {"show": false},
        "poi": {"show": false}
    }
}';
$map->setMapStyle($styleJson);
?>

The example hides roads, buildings, and points of interest, giving the map a blue‑tinted appearance.

Step 6: Render the map – Finally, output the map into the container created in Step 3:

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

The string map must match the id of the HTML container.

Conclusion – By following these six steps—obtaining an API key, importing the library, creating a container, initializing the map, configuring a style, and rendering—you can customize Baidu maps in PHP projects to achieve personalized visual results.