<?php

try {
    try {
        throw new Exception("hi thar");
    } catch (Exception $e) {
        throw $e;
    }
} catch (Exeception $e) {
    var_dump($e->getTrace());
}

output:

mentiad:phpunit jks$ php ~/butt.php
PHP Fatal error:  Uncaught exception 'Exception' with message 'hi thar' in /Users/jks/butt.php:5
Stack trace:
#0 {main}
  thrown in /Users/jks/butt.php on line 5