[FX.php List] [OFF] Getting visitor's IP

[Dale Bengston]

This is a short-hand if/else construct. If you were to bust it all the  
way out, it would look like:

if (isset($_SERVER['HTTP_PC_REMOTE_ADDR']))
	{
	$remoteHost = $_SERVER['HTTP_PC_REMOTE_ADDR'];
	}
else
	{
	$remoteHost = $_SERVER['REMOTE_ADDR'];
	}

This is beyond the main point though - Leo, if you're going to offer  
up solutions, please get yourself up to speed on the thread.

Dale


On Aug 22, 2008, at 5:56 PM, Leo R. Lundgren wrote:

> Actually, it's nicer to use isset() and assume that if that key is  
> set, the server did put something into it.
>
> $remoteHost = (isset() ? $_SERVER['HTTP_PC_REMOTE_ADDR'] :  
> $_SERVER['REMOTE_ADDR']);
>
>
> 22 aug 2008 kl. 23.41 skrev Leo R. Lundgren:
>
>> The ?: is more of an operator. See the manual :)
>>
>> I use strlen() to check if there's any data in the first key. If  
>> there is, use it, otherwise use the other key. As I've mentioned  
>> before I've come to the conclusion that it's not notably slower  
>> than using isset() (which would return TRUE for a var that is set,  
>> even if it doesn't contain any data).
>>
>> For the perfectionist, note that there is no need to have the  
>> surrounding () in the expression. I just use it for readability. In  
>> actuality, I think it's technically faster to leave them out. But  
>> unless you know that you need to remove them, it's not an issue.  
>> Just mentioning it to lay off the one whould point it out  
>> otherwise :P
>>
>> 22 aug 2008 kl. 23.32 skrev Jonathan Schwartz:
>>
>>> Interesting.  What function is that?  Also, what purpose does  
>>> strlen provide to the function?
>>>
>>> Thx
>>>
>>>> I'm sorry, I haven't followed this thread almost at all,  
>>>> honestly. But reading the below quote makes me think that someone  
>>>> is wondering whether to use REMOTE_ADDR or HTTP_PC_REMOTE_ADDR.
>>>>
>>>> If so, here's my suggestion:  $remoteHost =  
>>>> (strlen($_SERVER['HTTP_PC_REMOTE_ADDR']) ?  
>>>> $_SERVER['HTTP_PC_REMOTE_ADDR'] : $_SERVER['REMOTE_ADDR']);
>>>>
>>>> I'm probably so off track here :-)
>>>>
>>>>
>>>> 22 aug 2008 kl. 18.01 skrev Jonathan Schwartz:
>>>>
>>>>> Kevin,
>>>>>
>>>>> Are you sure that it is OS X Server making the change?  I admit  
>>>>> that I never spent the time trying to nail down the source, but  
>>>>> I assumed that it was the PHP version or web server.  I have  
>>>>> always used OS X Server 10.4, yet have had to fiddle with the  
>>>>> setting just the same.
>>>>>
>>>>> Jonathan
>>>>>
>>>>>
>>>>>>
>>>>>> You *can*, but normalising them makes your code portable to  
>>>>>> other systems,
>>>>>> and future-proofs it against changes in OS X Server (what if  
>>>>>> suddenly they
>>>>>> revert to using REMOTE_ADDR?).
>>>>>
>>>>> --
>>>>> Jonathan Schwartz
>>>>> Exit 445 Group
>>>>> jonathan at exit445.com
>>>>> http://www.exit445.com
>>>>> 415-370-5011
>>>>> _______________________________________________
>>>>> FX.php_List mailing list
>>>>> FX.php_List at mail.iviking.org
>>>>> http://www.iviking.org/mailman/listinfo/fx.php_list
>>>>
>>>>
>>>> -|
>>>>
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>>>
>>> -- 
>>> Jonathan Schwartz
>>> Exit 445 Group
>>> jonathan at exit445.com
>>> http://www.exit445.com
>>> 415-370-5011
>>> _______________________________________________
>>> FX.php_List mailing list
>>> FX.php_List at mail.iviking.org
>>> http://www.iviking.org/mailman/listinfo/fx.php_list
>>
>>
>> -|
>>
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>
>
> -|
>
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