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To: Greg Beaver <greg@chiaraquartet.net>
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Date: Wed, 03 Oct 2007 22:27:36 +0200
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Subject: Re: [PHP-DEV] link to exceptions in autoload thread?
From: johannes@php.net (Johannes =?ISO-8859-1?Q?Schl=FCter?=)

On Wed, 2007-10-03 at 22:23 +0200, Johannes Schlüter wrote:
> Greg,
> 
> On Wed, 2007-10-03 at 15:07 -0500, Greg Beaver wrote:
> > Now what?  The error message doesn't tell Joe where to find PEAR2::Foo,
> > or any other useful information on how to find it, just that it can't be
> > found.  PEAR2, however, knows exactly where it should be found, and has
> > some idea of why it isn't there (package not installed).  In addition,
> > there is no stack trace that can be used to debug the call chain that
> > led to the problem if PEAR2::Foo *is* installed, and Joe reports the
> > problem to the maintainers of PEAR2::Blah.
> > 
> > Without my die(new Exception()), there is no way to pass this known
> > information back out of PEAR2_Autoload to Joe, and it makes both
> > development and debugging much more difficult, and unnecessarily so.
> 
> function __autoload($a) {
>    $b = debug_backtrace();

This, of course, should have been
   $bt = debug_backtrace();
;-)

>    if ($bt[1]["function"] == "class_exists") {
>        echo "in get_class";
>    }
> }
> 
> should work quite well without obscure engine hacks - or am I missing
> something?
> 
> johannes