[pitboss] phase 19: Track M.1 — ClassMethod end-to-end (all langs)

tests/dynamic_fixtures/class_method/php/benign.php

@@ -0,0 +1,10 @@
+<?php
+// Phase 19 (Track M.1) — class-method benign control for PHP.
+
+class UserService {
+    public function __construct() {}
+
+    public function run($input) {
+        return shell_exec('echo ' . escapeshellarg($input));
+    }
+}