diff --git a/packages/scripts/CHANGELOG.md b/packages/scripts/CHANGELOG.md
index cfea089ad09b3..b58849d3d6ee9 100644
--- a/packages/scripts/CHANGELOG.md
+++ b/packages/scripts/CHANGELOG.md
@@ -6,6 +6,10 @@
 
 -   The bundled `@svgr/webpack` dependency has been updated from requiring `^5.5.0` to requiring `^6.2.1` ([#38866](https://github.com/WordPress/gutenberg/pull/38866)). See [official migration guide to v6](https://react-svgr.com/docs/migrate/) for details.
 
+### New Feature
+
+-   Automatically copy PHP files located in the `src` folder and its subfolders to the output directory (`build` by default) ([#38715](https://github.com/WordPress/gutenberg/pull/38715)).
+
 ## 21.0.2 (2022-02-15)
 
 -   Entry points are not detected in Windows OS ([#38781](https://github.com/WordPress/gutenberg/pull/38781)).
diff --git a/packages/scripts/config/webpack.config.js b/packages/scripts/config/webpack.config.js
index d4ca729dca87f..68dd39c810d41 100644
--- a/packages/scripts/config/webpack.config.js
+++ b/packages/scripts/config/webpack.config.js
@@ -232,6 +232,11 @@ const config = {
 					context: 'src',
 					noErrorOnMissing: true,
 				},
+				{
+					from: '**/**.php',
+					context: 'src',
+					noErrorOnMissing: true,
+				},
 			],
 		} ),
 		// The WP_BUNDLE_ANALYZER global variable enables a utility that represents