[FX.php List] if ( $var != '' ) OR if ( !empty($var) ) -- gen'l php recommendations?

[Joel Shapiro]

Thanks Steve

I've checked out php.net on this now, as well as previous threads  
here on error_reporting.

I've put error_reporting(E_ALL); on my detail page, just below  
session_start();

Since I've put this on my page, it seems I don't need to change my  
php.ini file.
Will I need to set anything regarding display_errors?
How can I test this (so I can see some errors displayed)?

Best,
-Joel


On Jul 24, 2006, at 6:29 PM, Steve Hannah wrote:

> Do:
> error_reporting(E_ALL);
>
> at the beginning of your script.  This will display most errors.
>
> Best regards
>
> Steve
>
>
> ----------------------------------------
> Steve Hannah
> Web Services Developer
>
> Faculty of Applied Sciences
> Simon Fraser University
> shannah at sfu.ca
> 604-268-7228
> Homepage: http://www.sjhannah.com
> --
> Need to build a database driven web application quickly?
> Try Dataface: http://fas.sfu.ca/dataface
>
>
>>
>> Thanks vey much,
>> -Joel
>>
>>
>> On Jul 24, 2006, at 5:15 PM, Chris Hansen wrote:
>>
>>> Joel,
>>>
>>> First off, this is a perfectly acceptable forum for PHP questions  
>>> (after all, we are all PHP users =)
>>>
>>> Here's my personal preference for checking a variable:
>>>
>>> if (isset($var) && strlen(trim($var)) > 0)
>>> {
>>>     # code...
>>> }
>>>
>>> First off, I want to be sure that the variable is even set (if  
>>> not, there could be an error, someone could be attempting to  
>>> access something the shouldn't, etc.)  Besides which, PHP will  
>>> return a low level error (notice, I believe) if you otherwise  
>>> check a variable that isn't set.
>>>
>>> The second check ensures that my variable not only contains data,  
>>> but that the data is not merely a space.  (Of course, if you want  
>>> to allow data that is just spaces, or other padding characters,  
>>> you'll need to modify this.)
>>>
>>> HTH
>>>
>>> --Chris Hansen
>>>   FileMaker 7 Certified Developer
>>>   Creator of FX.php
>>>   "The best way from FileMaker to the Web."
>>>   www.iViking.org
>>>
>>>
>>> On Jul 24, 2006, at 5:55 PM, Joel Shapiro wrote:
>>>
>>>> Hi all
>>>>
>>>> General PHP question here.  Apologies if I shouldn't post non-FX  
>>>> questions.
>>>>
>>>> When checking if a variable is not empty, are there reasons to  
>>>> choose one of these over the other?  (or are there preferable  
>>>> options still?)
>>>>
>>>> if ( $var != '' )
>>>> {
>>>> 	# code...
>>>> }
>>>>
>>>>
>>>> if ( !empty($var) )
>>>> {
>>>> 	# code...
>>>> }
>>>>
>>>> note: it seems that isset($var) will not give me what I want,  
>>>> since it can return true even if $var is set to empty
>>>>
>>>> TIA,
>>>> -Joel
>>>> _______________________________________________
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>>>> FX.php_List at mail.iviking.org
>>>> http://www.iviking.org/mailman/listinfo/fx.php_list
>>>>
>>>
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