PHP/Flash Help

I am testing the waters to see how well Flash 4.0 works with PHP. The problem I am beginning to relize is that when you run a PHP script called from Flash and return the output to Flash, its a pain in the you know what to debug. I guess I could take the long route and test the script and make sure it works without the Flash or just write functions to send errors back into the Flash program.... But I was wondering if there is anyway you can direct the error message of a PHP script into Flash. For those that dont know in order to send info back into the flash progam you would echo a string with "&" like this: echo "&variable=This would be the message sent back!&"; Any help would be appreciated. Nashirak