I speak under correction but the reason could be that if someone tries to hack 
your site, for example I post to your HTML page, you want to check it your 
$_POST contains a certain variable (which may be hidden)

Not really sure besides that



>>> Perry Jönsson <[EMAIL PROTECTED]> 11/22/2004 10:57:23 PM >>>
Jay Blanchard wrote:
> [snip]
> What is the difference between these two examples?
> Both works fine for me.
> 
> 
> 
> 1. if ($_POST['submit'] == 'Login') {
>       ...
>       ...
> }
> 
> 2. if (isset($_POST['submit']) {
>       ...
>       ...
> }
> [/snip]
> 
> One is checking if $_POST contains a specific value, the other just checks to 
> see if it contains a value. If $_POST['submit'] contains 'foo' is ISSET. Make 
> sense?


Maybe a daft question but why would you like to check for a specific value?

Can you give an example when this is a good thing to do?

/PJ

-- 
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php 


--------------------------------------------------------------------
Disclaimer
This e-mail transmission contains confidential information,
which is the property of the sender.
The information in this e-mail or attachments thereto is
intended for the attention and use only of the addressee.
Should you have received this e-mail in error, please delete
and destroy it and any attachments thereto immediately.
Under no circumstances will the Cape Technikon or the sender
of this e-mail be liable to any party for any direct, indirect,
special or other consequential damages for any use of this e-mail.
For the detailed e-mail disclaimer please refer to
http://www.ctech.ac.za/polic or call +27 (0)21 460 3911

--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php

Reply via email to