Re: How do I convert an array into a mask?

Why don't you ask Jim Carrey ??? He knew more that whoever here about "The MASK" !!! Good luck. ----- Original Message ----- From: "Daevid Vincent" <daevid@daevid.com> To: <php-general@lists.php.net> Sent: Wednesday, November 06, 2002 3:56 PM Subject: [PHP] How do I convert an array into a mask? > Does anyone know of a nice efficient way to convert an array of values > into a "mask"... > > Here's the deal. Given an array such that: > > $purchitem[0] = 1; > $purchitem[1] = 3; > $purchitem[2] = 4; > > I want to end up with a variable like this: > > $mask = "10110"; > > Additionally, my theory is that then the person purchases another book > later > > $purchitem[0] = 2; > > My new mask should be $purchmask = "01000"; > > Then I can load their previous mask from the database and boolean OR it > with the new mask to set the correct permissions. i.e. > > $newmask = $mask | $purchmask; > > Or ideally = "11110" > > Can I boolean OR strings like that in the way I 'hope' it will work? Do > I need to convert it to an intermediate stage or cast it or anything? > > Does this make sense? It's for an online book shopping cart. I have the > reverse working, where I can split the mask into what books. And I also > have the $purchitem[] working. > > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php > >