[SOLVED] <input type name="xx"> and $xx

[chaiwei]

Hi all,

 

If I have an

 

(index.php)

<form action="haha.php" action="post">
<input type="submit" name="xx">
</form>

then in

 

(haha.php)

 

i can use the

if($xx){

}

right?

 

But i thought it must be use $_POST['xx'];

Or it is because of the <form action="haha.php">

So can't use the $_POST['xx'] because in haha.php it still got another form?

 

Another situation is if in index.php i got another input type with same name?

 

<form action="haha.php" action="post">
<input type="text" name="xx">
<input type="submit" name="xx">
</form>

So the $xx will refer to which one?

 

EDIT: please use the code tags

[Zane]

 

But i thought it must be use $_POST['xx'];

Or it is because of the

If you are able to use $xx in haha.php then it means you have register_globals turned on.  Which is a "bad" thing to have on..security wise.  And yes  $_POST['xx'] is the proper way to call it.  There is also $_REQUEST['xx'] but I don't recommend ever using that.

 

Another situation is if in index.php i got another input type with same name?

 

 

 

So the $xx will refer to which one?

it would take the value of the submit button.

[chaiwei]

If you are able to use $xx in haha.php then it means you have register_globals turned on.  Which is a "bad" thing to have on..security wise.  And yes  $_POST['xx'] is the proper way to call it.  There is also $_REQUEST['xx'] but I don't recommend ever using that.

 

Hi,

 

Thanks a lot.

But I don't understand what means by register_globals?

Is it inside the phpinfo()?

 

[Zane]

Well, you can look at phpinfo and see whether or not they're on or not

but to really do anything you have to open up your php.ini file

and find the line

 

register_globals = On

and change it accordingly...you know

register_globals = Off

[chaiwei]

Hi,

 

Thanks.

It helps me a lot.