Update

examples/project/ext.cc

@@ -3,7 +3,7 @@
 
 using namespace php;
 
-Int php_ext_test(Int a, Int b) {
+Int php_fn_test(Int a, Int b) {
     auto c = a + b;
     var_dump(c);
     var_dump(php_uname());

examples/project/ext.stub.php

@@ -1,4 +1,4 @@
 <?php
-function ext_test(int $a, int $b): int
+function fn_test(int $a, int $b): int
 {
 }

examples/project/main.php

@@ -2,5 +2,6 @@
 function main()
 {
     fn1();
-    ext_test(199, 189);
+    $rs = fn_test(199, 189);
+    var_dump(gettype($rs));
 }