Bob McConnell wrote:
> From: Tommy Pham
>>> From: Tim Legg
>>>
>>> I just spent way, way to much time trying to debug code due to a
> misnamed
>>> element. Here is a simplified example of the problem I dealt with.
>>>
>>>
>>> $test = "SELECT * FROM `Materials` WHERE `Part_Number` =
> '125664'";
>>> $result = mysql_query($test,$handle);
>>> if(!$result)
>>> {
>>> die('Error: ' . mysql_error());
>>> }
>>> $row = mysql_fetch_array($result);
>>> echo $row['Number'];
>>>
>>> After retyping the code 3 or 4 times over the course of the morning,
> I finally
>>> found where the problem was. The problem is that the database field
> is called
>>> 'Part_Number', not 'Number'. The field 'Number' does not exist in
> the
>>> database. I am very surprised that I didn't even get a warning that
> there might
>>> be a problem with the statement. All I saw is that nothing was being
> returned
>>> via the echo command.
>> if(!$result)
>> {
>> die('Error: ' . mysql_error());
>> }
>>
>> This didn't work when you used 'Number' instead of 'Part_Number'?
> Strange...
>
> I think the problem is that he didn't check that the key he used
> actually existed before using the value it pointed to. So he got an
> empty string for $row['Number']; because the key should have been
> 'Part_Number'. I don't know that even E_STRICT would catch that one.
>
> Bob McConnell
What? With E_ALL or E_STRICT:
Notice: Undefined index: Number in file.php on line X
--
Thanks!
-Shawn
http://www.spidean.com
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