On Fri, Jun 19, 2009 at 07:52:40PM +0100, Ashley Sheridan wrote:
> On Fri, 2009-06-19 at 12:36 +0100, Ford, Mike wrote:
> > On 18 June 2009 20:25, LAMP advised:
> > > using !empty() instead isset() will work if you don't care for PHP
> > > Notice: Undefined variable... If you want to avoid PHP Notice
> > > you have
> > > to use both:
> > >
> > > $msg.= (isset($_POST['mort']) and !empty($_POST['mort'])) ? "The
> > > mortgage amount is $mort\n" : " ";
> > Absolute rubbish -- as it says at http://php.net/empty, "empty($var) is
> > the opposite of (boolean)$var, except that no warning is generated when
> > the variable is not set." -- so "protecting" empty() with an isset() is
> > a total waste of time, space and cpu cycles.
> To be honest, you're still opening yourself up to attack that way.
Why and how?
Paul M. Foster
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php