AMFPHP + onFault function

Question

How are you supposed to use the onFault function with AMFPHP?
I'm trying to use "trigger_error($errormsg);". But the onFault
function in Flex 2 only prints [object Object].
So I have probably missunderstood the entire concept with the
onFault function.
Let's say I want to add something to a database, a user. I'll
send the username + email with my amfphp class. In that class I
have a function that checks if the username or the email already
exists, but how will I return the message to Flex 2 if one of them
already exists?
I thought the easiest way was to use: trigger_error("Username
exists"); and trigger_error("E-mail exists");. But that's useless
if you can't display the error msg in Flex 2.
Can someone help a complete beginner to flex 2 and amfphp
out?

Answer 1

I tried this function:
quote:
private function onFault(e:Object) : void
mx.controls.Alert.show(ObjectUtil.toString(e));
This will display this message in the alert box:
quote:
(Object)#0
code = "AMFPHP_RUNTIME_ERROR"
description = "Wrong username or password!"
details = "e:\projektmapp\Webb\annat\adobe flex 2
applicationer test\amfphp-1.9.beta\amfphp\services\userLogin.php"
level = "Unknown error type"
line = 37
But I want to display the "description" only.
If I try this function:
quote:
private function onFault(e:FaultEvent) : void
mx.controls.Alert.show(e.fault.faultString);
I'm getting an error when I run the application
quote:
TypeError: Error #1034: Type Coercion failed: cannot convert
Object@817dd81 to mx.rpc.events.FaultEvent.
Been trying to get this working for countless hours now, and
I can't figure it out :(
I'm triggering the error msg with this code in PHP
quote:
trigger_error("Wrong username or password!");