package phpgo import ( "github.com/arnaud-lb/php-go/php-go" "sync" "time" ) var _ = php.Export("test", map[string]interface{}{ "power": Power, }) func Power(n int) int { result := 0 var wg sync.WaitGroup wg.Add(n) for i := 0; i < n; i++ { go func() { time.Sleep(time.Second) result *= n wg.Done() }() } wg.Wait() return result } func main() {}