Re: Re: what's the difference in the following code?

On Sun, 2008-10-19 at 23:02 -0400, Andrew Ballard wrote: > On Sat, Oct 18, 2008 at 2:34 PM, Robert Cummings <robert@interjinn.com> wrote: > > > > On Sat, 2008-10-18 at 08:44 -0700, Yeti wrote: > > > I would understand it if it was like this .. > > > > > > <?php > > > $search = isset($_GET['search']) ? $_GET['search'] : > > > ''; > > > # versus > > > if (isset($_GET['search'])) { $search = $_GET['search']; } > > > ?> > > > > > > In the first statement $search would either be set to $_GET['search'] > > > or an empty string, whereas in the second statement $search would only > > > be set, if there is a $_GET['search'] > > > > Wrong. They are equivalent. The second is probably just easier to follow > > with a clearly defined default value outside the conditional block. > > > > Cheers, > > Rob. > > No, they are not. In the first statement, $search is the value of > $_GET['search'] if the key exists, or an empty string if it does not. > In the second statement, $search is the value of $_GET['search'] if > the key exists or retains its original value if the key does not > exist. Yes, I didn't realize Yeti had changed the OP's code which convoluted the issue since his version wasn't what I was responding to and I didn't realize he dropped a line from the OP's code. Cheers, Rob. -- http://www.interjinn.com Application and Templating Framework for PHP