docs: WordPress

Author: dunglas

README.md

@@ -140,6 +140,7 @@ Go to `https://localhost`, and enjoy!
 - [Create static binaries](https://frankenphp.dev/docs/static/)
 - [Compile from sources](https://frankenphp.dev/docs/compile/)
 - [Monitoring FrankenPHP](https://frankenphp.dev/docs/metrics/)
+- [WordPress integration](https://frankenphp.dev/docs/wordpress/)
 - [Laravel integration](https://frankenphp.dev/docs/laravel/)
 - [Known issues](https://frankenphp.dev/docs/known-issues/)
 - [Demo app (Symfony) and benchmarks](https://github.com/dunglas/frankenphp-demo)

docs/wordpress.md

@@ -0,0 +1,57 @@
+# WordPress
+
+Run [WordPress](https://wordpress.org/) with FrankenPHP to enjoy a modern, high-performance stack with automatic HTTPS, HTTP/3, and Zstandard compression.
+
+## Minimal Installation
+
+1. [Download WordPress](https://wordpress.org/download/)
+2. Extract the zip archive and open a terminal in the extracted directory
+3. Run:
+    ```console
+   frankenphp php-server
+   ```
+4. Go to `http://localhost/wp-admin/` and follow the installation instructions
+5. Enjoy!
+
+For a production-ready setup, prefer using `frankenphp run` with a `Caddyfile` like this one:
+
+```caddyfile
+example.com
+
+php_server
+encode zstd br gzip
+log
+```
+
+## Hot Reload
+
+To use the [hot reload](hot-reload.md) feature with WordPress, enable [Mercure](mercure.md) and add the `hot_reload` sub-directive to the `php_server` directive in your `Caddyfile`:
+
+```caddyfile
+localhost
+
+mercure {
+    anonymous
+}
+
+php_server {
+    hot_reload
+}
+```
+
+Then, add the code needed to load the JavaScript libraries in the `functions.php` file of your WordPress theme:
+
+```php
+function hot_reload() {
+    ?>
+    <?php if (isset($_SERVER['FRANKENPHP_HOT_RELOAD'])): ?>
+        <meta name="frankenphp-hot-reload:url" content="<?=$_SERVER['FRANKENPHP_HOT_RELOAD']?>">
+        <script src="https://cdn.jsdelivr.net/npm/idiomorph"></script>
+        <script src="https://cdn.jsdelivr.net/npm/frankenphp-hot-reload/+esm" type="module"></script>
+    <?php endif ?>
+    <?php
+}
+add_action('wp_head', 'hot_reload');
+```
+
+Finally, run `frankenphp run` from the WordPress root directory.