Re: Stripslashes

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What are these magic quotes anyways?. What are they used for? escaping?

Regards,
Ravi.

On Tue, Nov 16, 2010 at 11:44 PM, Adam Richardson <simpleshot@xxxxxxxxx>wrote:

> On Tue, Nov 16, 2010 at 10:10 PM, Gary <gpaul@xxxxxxxxxxxxxxxx> wrote:
>
> > I was doing a test of stripslashes on a $_POST, when I recieved the
> email,
> > all of the slashes were still in the data posted.
> >
> > I used :
> >
> > $fname = stripslashes($_POST['fname']);
> >
> > I input G\\a//r\y\\, and was expecting, according to the manuel
> G\a//r*y\,
> > but got the original spelling.
> >
>
> In this case, you should get the original, if I'm understanding correctly.
>  Think of it like a basic math problem:
>
> Step 1: Happens automatically when you submit the form and PHP receives the
> form variables
> input + slashes = slashed_input
>
> Step 2: This happens when you call stripslashes.
> slashed_input - slashes = input
>
> The goal of stripslashes is that it will undo what happened automatically
> using magic_quotes_gpc (which essentially calls addslashes on the GPC vars
> behind the scenes) so you'll end up with the original input.
>
> So, working through your example:
>
>   1. You inputted into a form G\\a//r\y\\ and submitted the form.
>   2. PHP received G\\a//r\y\\ and added slashes (G\\\\a//r\\y\\\\).
>   3. You called stripslashes (G\\a//r\y\\).
>
>
>
>
> >
> > I added:
> >
> > echo stripslashes($fname); and did get the expected result on the page,
> but
> > not in the email from the $_POST.
> >
>
> Here, you called stripslashes on something already stripped once, so you
> now
> have a new value (G\a//ry\).
>
>
> >
> > I also tried
> >
> > $fname = (stripslashes($_POST['fname']));
> >
>
> This would be no different than your attempt without enclosing parentheses.
>
> Now, let me just say that I detest magic_quotes, and it's best to run with
> them disabled so you  don't even have to worry about this kind of issue
> (they've been deprecated.)  But, perhaps you were just trying to learn
> about
> some piece of legacy code.
>
> Hope the explanation helps, Gary.
>
> Adam
>
> --
> Nephtali:  PHP web framework that functions beautifully
> http://nephtaliproject.com
>

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