[FX.php List] Problem with site on client's server

[Steve Winter]

Hi Joel,

With all errors set to show, including Notices then 
   if($skipSize)
and
   if($skipSize == '') 
will both return notices about undefined index... I know that at times I
used to get a bit lazy and just use the first of these...

Your first one however
   if(isset($skipSize)) 
is fine, and I tend to extend that further to be
   if(isset($skipSize) && $skipSize != '')
as that way you check both that the variable actually exists, and that it
has no value...

Hope this clarifies things... ;-)

Cheers
Steve


-----Original Message-----
From: fx.php_list-bounces at mail.iviking.org
[mailto:fx.php_list-bounces at mail.iviking.org] On Behalf Of Joel Shapiro
Sent: Thursday, 18 October 2007 6:59 p.m.
To: FX.php Discussion List
Subject: Re: [FX.php List] Problem with site on client's server

oops.

actually should have been

e.g.   if ( !isset( $skipSize ))  vs.   if ( $skipSize == '' )

to make them comparable

! + isset

-Joel


On Oct 18, 2007, at 10:51 AM, Joel Shapiro wrote:

> Hmm...  Were you using isset()?  (I wouldn't have thought that that  
> could cause an error)
>
> e.g.   if ( isset( $skipSize ))  vs.   if ( $skipSize == '' )
>
> -Joel
>
>
> On Oct 18, 2007, at 10:27 AM, Bob Patin wrote:
>
>> Joel,
>>
>> Actually it wasn't a counter variable; it was my skip variable for  
>> doing previous/next code for page views. I had an IF statement  
>> that said, if $skipSize isn't set, set it to zero; so rather than  
>> that goofy method I just put a hidden variable on the form, to set  
>> the skipSize to zero. That way the variable is set no matter how  
>> it's used.
>>
>> So it either gets set to zero when the query is performed, or it  
>> gets reset to an appropriate value when the PREV/NEXT buttons are  
>> used on the results page.
>>
>> Bob
>>
>>
>> On Oct 18, 2007, at 12:15 PM, Joel Shapiro wrote:
>>
>>> Hey Bob
>>>
>>> Can you give an example of your undeclared variable?
>>>
>>> Do you mean you used a counter variable in a loop without  
>>> starting it equal to zero?
>>>
>>> -Joel
>>
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