Add a code sample [skip ci]

Author: cedx

example/Transformer.js

@@ -0,0 +1,26 @@
+import {FastTransformer, SafeTransformer} from "@cedx/php-minifier";
+import console from "node:console";
+import {mkdir, readdir, writeFile} from "node:fs/promises";
+import {dirname, join, relative} from "node:path";
+import {env} from "node:process";
+
+// Choose an appropriate transformer.
+await using transformer = env.PHPMINIFIER_MODE == "fast" ? new FastTransformer : new SafeTransformer;
+
+// Scan the input directory for PHP files.
+const input = "path/to/source/folder";
+const files = (await readdir(input, {recursive: true, withFileTypes: true}))
+	.filter(item => item.isFile() && item.name.endsWith(".php"));
+
+// Write the transformed files to the output directory.
+const output = "path/to/destination/folder";
+for (const file of files) {
+	const fullPath = join(file.parentPath, file.name);
+	const relativePath = relative(input, fullPath);
+	console.log(`Minifying: ${relativePath}`);
+
+	const script = await transformer.transform(fullPath);
+	const target = join(output, relativePath);
+	await mkdir(dirname(target), {recursive: true});
+	await writeFile(target, script);
+}