Tip for 5.3: exceptions in __toString and __autoload View as Markdown

This code throws Fatal error: Method test::__toString() must not
throw an exception

class Test1
{
public function __toString()
{
throw new Exception;
}
}

The same problem causes throwing exceptions in function __autoload.

I think this behavior is against the logic of exceptions. Excellent
feature of PHP 5.3 would be to resolve this errors.

This is down to the design of the engine, we perform casting to
strings in a lot of different places and it couldn't be guaranteed
that the engine would handle any exceptions correctly.

I'm pretty sure there is something in the internals archives about
this change.

Scott

This code throws Fatal error: Method test::__toString() must not throw an
exception

class Test1
{
public function __toString()
{
throw new Exception;
}
}

The same problem causes throwing exceptions in function __autoload.

I think this behavior is against the logic of exceptions. Excellent feature
of PHP 5.3 would be to resolve this errors.

regarging __autoload, everything is correct, actually, as throwing
exception doesn't let engine to try other variants (which is
counter-intuitive). it is perfectly fine to have several autoloaders
enabled.

regarding __toString(), I am not convinced that it is unresolvable.
Someone with better understanding of engine should comment

--
Alexey Zakhlestin
http://www.milkfarmsoft.com/