#50250 [Opn]: Exceptions can be thrown and caught in an autoload function

From: Date: Fri, 20 Nov 2009 20:14:30 +0000
Subject: #50250 [Opn]: Exceptions can be thrown and caught in an autoload function
References: 1  Groups: php.bugs 
Request: Send a blank email to php-bugs+get-144888@lists.php.net to get a copy of this message 
 ID:               50250
 Updated by:       bjori@php.net
 Reported By:      brandon@php.net
 Status:           Open
-Bug Type:         SPL related
+Bug Type:         Scripting Engine problem
 Operating System: Irrelevent
 PHP Version:      5.3.1
 New Comment:

This is also true for __autoload(), not only spl_register_autoload().

Bug or expected behavior as of PHP 5.3.0?



Previous Comments:
------------------------------------------------------------------------

[2009-11-20 19:50:03] brandon@php.net

Description:
------------
According to the PHP documentation, exceptions cannot be thrown inside
__autoload() functions, and prior to PHP 5.3, exceptions thrown resulted
in fatal errors. Since PHP 5.3, it has been possible to throw and catch
exceptions from __autoload() functions.

I'm happy to chalk this up to a documentation bug, and if it is I will
gladly fix it myself; however, I want to make sure this is intended
functionality and not an accidental inclusion that might be fixed in
future versions of PHP.

Reproduce code:
---------------
<?php

function autoload($class)
{

throw new Exception('test');
require $class . '.php';

}

spl_autoload_register('autoload');

try {
	new NoExist();
} 
catch (Exception $e)
{
	echo 'unable to load the class.';
}

Expected result:
----------------
Fatal error, as the autoloader throws an exception which is not
allowed.

Actual result:
--------------
string of "unable to load the class."


------------------------------------------------------------------------


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