Re: IF with multiple values for a variable

On Thu, 2007-06-14 at 12:12 +0200, Jochem Maas wrote: > Robert Cummings wrote: > > On Wed, 2007-06-13 at 13:57 -0400, tg-php@gryffyndevelopment.com wrote: > >> double pipes constitutes an "OR" operation. You can use the keyword OR as > >> well. Also, && and AND are the same as well. > >> > >> > >> http://us.php.net/manual/en/language.operators.logical.php > > > > They aren't exactly the same. Make sure and read the order of precedence > > note. The following, for example, are not equivalent: > > I knew that they we're not exactly the same due to order of precedence, but > I ran Robbert's code snippet and found that my assumptions about the outcome incorrect! ^^^^^^^ That's Robert :) > my assumption was that '=' had lower precedence that 'and' ... somehow that > felt right, > obviously I was wrong. > > it took me a few seconds to see the error of my ways :-) maybe there are other > that are confused ... maybe the output of following little snippet might help to clarify: > > <?php > > $true = true; > $false = false; > > $test1 = $true && $false; > $test5 = ($test2 = $true and $false); > $test3 = ($true && $false); > $test4 = ($true and $false); > > var_dump($test1, $test2, $test3, $test4, $test5); > > ?> > > thanks to Robbert for the brainteaser ;-) ^^^^^^^ I'm not sure if you're confused, pulling my leg, or somehow capable of slurring a 'b' :) Cheers, Rob. -- .------------------------------------------------------------. | InterJinn Application Framework - http://www.interjinn.com | :------------------------------------------------------------: | An application and templating framework for PHP. Boasting | | a powerful, scalable system for accessing system services | | such as forms, properties, sessions, and caches. InterJinn | | also provides an extremely flexible architecture for | | creating re-usable components quickly and easily. | `------------------------------------------------------------'