fix php startup errors when ini files contain environment variables

frankenphp.c

@@ -1135,6 +1135,13 @@ static void *php_main(void *arg) {
 
   frankenphp_init_interned_strings();
 
+  /* take a snapshot of the environment for sandboxing */
+  if (main_thread_env == NULL) {
+    main_thread_env = pemalloc(sizeof(HashTable), 1);
+    zend_hash_init(main_thread_env, 8, NULL, NULL, 1);
+    go_init_os_env(main_thread_env);
+  }
+
   frankenphp_sapi_module.startup(&frankenphp_sapi_module);
 
   /* check if a default filter is set in php.ini and only filter if
@@ -1144,13 +1151,6 @@ static void *php_main(void *arg) {
   should_filter_var = default_filter != NULL;
   original_user_abort_setting = PG(ignore_user_abort);
 
-  /* take a snapshot of the environment for sandboxing */
-  if (main_thread_env == NULL) {
-    main_thread_env = pemalloc(sizeof(HashTable), 1);
-    zend_hash_init(main_thread_env, 8, NULL, NULL, 1);
-    go_init_os_env(main_thread_env);
-  }
-
   go_frankenphp_main_thread_is_ready();
 
   /* channel closed, shutdown gracefully */

frankenphp_test.go

@@ -160,6 +160,19 @@ func testHelloWorld(t *testing.T, opts *testOptions) {
 	}, opts)
 }
 
+func TestEnvVarsInPhpIni(t *testing.T) {
+	t.Setenv("OPCACHE_ENABLE", "0")
+
+	runTest(t, func(handler func(http.ResponseWriter, *http.Request), _ *httptest.Server, _ int) {
+		body, _ := testGet("http://example.com/ini.php?key=opcache.enable", handler, t)
+		assert.Equal(t, "opcache.enable:0", body)
+	}, &testOptions{
+		phpIni: map[string]string{
+			"opcache.enable": "${OPCACHE_ENABLE}",
+		},
+	})
+}
+
 func TestFinishRequest_module(t *testing.T) { testFinishRequest(t, nil) }
 func TestFinishRequest_worker(t *testing.T) {
 	testFinishRequest(t, &testOptions{workerScript: "finish-request.php"})

phpmainthread_test.go

@@ -188,12 +188,11 @@ func TestReturnAnErrorIf2WorkersHaveTheSameFileName(t *testing.T) {
 	workersByName = map[string]*worker{}
 	workersByPath = map[string]*worker{}
 	w, err1 := newWorker(workerOpt{fileName: testDataPath + "/index.php"})
+	assert.NoError(t, err1)
 	workers = append(workers, w)
 	workersByName[w.name] = w
 	workersByPath[w.fileName] = w
 	_, err2 := newWorker(workerOpt{fileName: testDataPath + "/index.php"})
-
-	assert.NoError(t, err1)
 	assert.Error(t, err2, "two workers cannot have the same filename")
 }
 
@@ -202,12 +201,11 @@ func TestReturnAnErrorIf2ModuleWorkersHaveTheSameName(t *testing.T) {
 	workersByName = map[string]*worker{}
 	workersByPath = map[string]*worker{}
 	w, err1 := newWorker(workerOpt{fileName: testDataPath + "/index.php", name: "workername"})
+	assert.NoError(t, err1)
 	workers = append(workers, w)
 	workersByName[w.name] = w
 	workersByPath[w.fileName] = w
 	_, err2 := newWorker(workerOpt{fileName: testDataPath + "/hello.php", name: "workername"})
-
-	assert.NoError(t, err1)
 	assert.Error(t, err2, "two workers cannot have the same name")
 }