Class 'MyApp\Thread' not found

I'm trying Ratchet with pthreads and run into my not understanding of namespaces. I have added new file to my application:

<?php
namespace MyApp;

class Test1 extends Thread
{
    public function run()
    {
        for ($i = 0; $i < 2; $i++) {
            sleep(10);
            echo 1 . date(' H:i:s') . "\n";
        }
    }
}

but I mess up something with namespaces because I get this error:

PHP Fatal error:  Class 'MyApp\Thread' not found in /home/idea/CLI/src/MyApp/Test1.php on line 4

Fatal error: Class 'MyApp\Thread' not found in /home/idea/CLI/src/MyApp/Test1.php on line 4

Why PHP can't find Thread class? It is working fine outside of Ratchet.

Solution

You've moved your current namespace to MyApp and, therefore, need to reference the Thread class with its fully qualified name: \Thread.