diff --git a/examples/error/const-ref.php b/examples/error/const-ref.php
new file mode 100644
index 00000000..a41ccfe6
--- /dev/null
+++ b/examples/error/const-ref.php
@@ -0,0 +1,5 @@
+<?php
+function main()
+{
+    parse_str('hello=s', "hello");
+}
diff --git a/examples/swoole/co.php b/examples/swoole/co.php
new file mode 100644
index 00000000..c6bc5d9c
--- /dev/null
+++ b/examples/swoole/co.php
@@ -0,0 +1,8 @@
+<?php
+
+function main(): void
+{
+    Swoole\Coroutine\run(function () {
+        sleep(1);
+    });
+}
\ No newline at end of file
diff --git a/examples/swoole/http.php b/examples/swoole/http.php
new file mode 100644
index 00000000..58032f61
--- /dev/null
+++ b/examples/swoole/http.php
@@ -0,0 +1,18 @@
+<?php
+function main()
+{
+    $http = new Swoole\Http\Server('127.0.0.1', 9501);
+
+
+    $http->on('request', function ($request, $response) {
+        try {
+            $response->header('Content-Type', 'text/plain');
+            $response->end('Hello World');
+        } catch (Exception $e) {
+            $response->status(500);
+            $response->end('error: ' . $e->getMessage());
+        }
+    });
+
+    $http->start();
+}
\ No newline at end of file