On Wed, 26 Mar 2008 17:40:56 +0100, Daniel Klein
<danielk@featherbrain.net> wrote:

> On Wed, 26 Mar 2008 16:51:36 +0100, "Rik Wasmus"
> <luiheidsgoeroe@hotmail.com> wrote:
>
>> On Wed, 26 Mar 2008 16:04:59 +0100, Daniel Klein
>> <danielk@featherbrain.net> wrote:
>>
>>> When I run the following code the following errors end up in my error
>>> log
>>> file:
>>>
>>> PHP Notice: Undefined variable: n in C:\home\php\sandbox\error.php on
>>> line
>>> 14
>>> PHP Fatal error:Call to a member function fun() on a non-object in
>>> C:\home\php\sandbox\error.php on line 14
>>>
>>>
>>> <?php
>>> class Numpty {
>>> public function fun() {
>>> return 'Have fun!';
>>> }
>>> }
>>>
>>> $n = new Numpty();
>>> echo $n->fun();
>>>
>>> unset($n);
>>>
>>> try {
>>> echo $n->fun(); //this is line 14
>>> }
>>> catch (Exception $e) {
>>> echo 'Gotcha!';
>>> }
>>> echo 'Done';
>>> ?>
>>>
>>>
>>> You will notice that I have a 'try/catch' block around the line thatis
>>> causing the error. Why doesn't this code catch the error?
>>>
>>> What is the PHP way of handling this situation?
>>>
>>> I'm reading up now on custom error handlers but I decided to post this
>>> now
>>> in case that leads to another wgc ;-)
>>
>> http://bugs.php.net/bug.php?id=40014
>> When it's not a recoverable error error it will not be catchable in any
>> way. Adjust your code to cope with this by checking more / perhaps using
>> type hinting as in http://bugs.php.net/bug.php?id=40014.
>
> Thanks Rik; interesting reading, that.
>
> I will look into type hinting but for now it appears as that isset() and
> the
> is_xxxx() collection of functions will handle much of this error
> checking,
> albeit it will require a bit more code than exception handling :-(

Yup, also valuable the check for interfaces, allthough the instanceof
operator is prefered nowadays.

> Btw, did you mean to post a different link to 'type hinting'? Perhaps you
> meant
> http://www.php.net/manual/en/languag...ypehinting.php

Indeed, there seems to be wrong with either my copying or pasting of links
in my browser lately. That's the URL I ment.
--
Rik Wasmus