[FX.php List] php 5 problems: I have tried to copy my existing scripts to php5 enabled servers

[DC]

apropos of that issue i found this enlightening:

http://www.nyphp.org/phundamentals/variableevaluation.php

dan

Bob Patin had written:
> I've always tested to make sure that not only is there a session 
> variable by that name, but also that it's not empty, by using
> 
> if(strlen($_SESSION['myvar'])>0)
> 
> Probably an easier way, but it works fine for me so that's how I've been 
> doing it...
> 
> I used to use isset, but sometimes I found that a variable was there, 
> but there was nothing in it...
> 
> Bob Patin
> Longterm Solutions
> bob at longtermsolutions.com
> 615-333-6858
> http://www.longtermsolutions.com
> 
>   CONTACT US VIA INSTANT MESSAGING:
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> 
> On Mar 5, 2007, at 9:00 AM, Dale Bengston wrote:
> 
>> With PHP 4, I used to do a lot of evaluations like
>>
>> if ($_SESSION['whatever'])
>>
>> ...using the presence or absence of a variable to decide action. PHP 5 
>> requires more explicit references, like
>>
>> if (isset($_SESSION['whatever']))
>> if (!empty($_SESSION['whatever']))
>>
>> ...so I can't be sloppy any more. Maybe you're running into this?
>>
>> Dale
>>
>>
>> On Mar 5, 2007, at 6:30 AM, Gjermund Gusland Thorsen wrote:
>>
>>> php 5 problems: I have tried to copy my existing scripts to php5 
>>> enabled servers
>>>
>>> It has problems, especially with ifs while traversing arrays in
>>> _REQUEST and _SESSION
>>>
>>> anyone else encountered this?
>>>
>>> ggt667
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>>
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