Posted by GA on 07/30/07 21:19

On Mon, 30 Jul 2007 20:44:02 +0200, Rik <luiheidsgoeroe@hotmail.com>
wrote:

>> I am having a script problem.
>>
>> When I turn on all reporting, the only thing I get is a few
>> insignificant 'notices', but nothing else.n I should mention now that
>> the script was working just fine at one point, and I am not sure what
>> happened to make it stop. The Notices in php error reporting existed
>> then as well, so I know it has nothing to do with them.
>>
>> Other than that, my script just stops. I can't find an error in it!
>
>Stopping could be script error instead of a PHP one... I've had codes
>die/end prematurely due to an error in setup. PHP won't complain :).
>
>> Anyone have suggestions as to how I can proceed to dig out the real
>> issue?
>
>use this code:
><?php
>echo 'Untill here it works:'.__FILE__.':'__LINE__."\n";
>flush();
>?>
>
>Place it at major points in your code (if you get any output obviously
>start just after the last verifiable point), follow the flow and see where
>it dies, and then zone in on the fatal error placing these closer and
>closer together. Or if you;re afraid of polluting your code to much just
>follow the flow placing it further and further untill it doesn't show
>anymore, and check the piece just before that.
>
>If that all sounds to much work and you have control over
>extentions:http://xdebug.org/, and you can see what the last function was
>before the end.


I did something similar and I was able to track down where the bug
was. I am confused by the bug, though:

It seems the script stopped at a point where I made a call from a
mysql table like this:

$foo = mysql_fetch_array(mysql_query(SELECT * FROM table a WHERE id =
12));

Which always worked before. The difference now, though, is that table
a is now empty. And the script stopped because of that. Without
showing an error - even on the mysql side of things.

Is there some special circumstance as to why a script would stop
because an empty set was returned?

Thanks,

TC

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