Snaptest and PHP Isolation Testing

sample.php

<?php
class Dispatcher {
    public function dispatch($call, $key_stack, $options = array()) {
        // ... set up an array for child processes
        // ... dispatch, collect round robin
        // ... got a complete response from a child
        call_user_func_array($options['thread_complete_callback'], array($results));
        // ... continue until all dispatches are made for $key_stack
        // ... dispatch complete callback
        return call_user_func_array($options['dispatch_complete_callback'], array($results));
    }
}