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Re: Magic quotes? Should I still be cautious? [message #176416 is a reply to message #176414] Thu, 05 January 2012 13:39 Go to previous messageGo to previous message
Erwin Moller is currently offline  Erwin Moller
Messages: 228
Registered: September 2010
Karma:
Senior Member
On 1/5/2012 2:22 PM, Arno Welzel wrote:
> Erwin Moller, 2012-01-05 14:08:
>
>> On 1/4/2012 3:55 PM, Arno Welzel wrote:
>>> Michael Joel, 2011-12-29 21:55:
>>>
>>>> I do not have control of my server (shared server).
>>>>
>>>> echo get_magic_quotes_gpc(); returns True.
>>>> Should I still be cautious and use addslashes/stripslashes in case the
>>>> hosting company ever decides to change the settings?
>>>
>>> I assume magic quotes to be disabled and in the past i used the
>>> following code fragment to be safe:
>>>
>>> <http://arnowelzel.de/wiki/en/web/php_magicquotes>
>>>
>>>
>>
>> Hi Arnold,
>
> Just Arno - not Arnold ;-)

Excuse me, Arno. :-)

I say a lot of Arnold lately since I go to sport school for the first
time in my life. I do this with a friend (who is also a fat programmer
like me) and we call each other Arnold when we are training muscles and
stuff. ;-)
Slip of the tongue, my bad.


>
>> That is a lot of overhead on each request.
>
> I know - and this is only meant to be a workaround for existing code
> which can not be easily adopted to handle Magic Quotes and the PHP
> configuration can not be changed.
>
>> And $_REQUEST should be avoided anyway in all situation (in my humble
>> opinion) for various reasons. But if you use it, it should indeed be
>> added to your list in your approach.
>
> I'm not sure, if it's enough to modify $_GET, $_POST etc. if further
> parts of a script use $_REQUEST - therefore i added $_REQUEST to be sure.
>

I wondered the same thing, actually.
So here is a little test:

<?php
if (isset($_GET["n"])){
$nget = $_GET["n"];
$nrequest = $_REQUEST["n"];

echo "Before:<br>\$nget=$nget<br>\$nrequest=$nrequest<br>";
$_GET["n"] = "something else";
$nget = $_GET["n"];
$nrequest = $_REQUEST["n"];
echo "After:<br>\$nget=$nget<br>\$nrequest=$nrequest<br>";
} else {
echo "use test.php?n=whatever in the url.";
}
?>

When I feed that prog "hi, like this":
http://localhost/test.php?n=hi
It responds with:

Before:
$nget=hi
$nrequest=hi
After:
$nget=something else
$nrequest=hi

Conclusion? $_REQUEST is filled for real, and it doesn't fetch the
information afterwards from GPC which was indeed also possible.

Regards,
Erwin Moller

--
"That which can be asserted without evidence, can be dismissed without
evidence."
-- Christopher Hitchens

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