Re: Binary refresher needed
| From: | Marek Kilimajer | Date: | Sun, 29 Aug 2004 20:50:45 +0000 |
| Subject: | Re: Binary refresher needed | ||
| References: | 1 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-195115@lists.php.net to get a copy of this message | ||
John Holmes wrote:
Okay, I need a reminder on this. A given variable can consist of two constants ORd together, say TEST1 and TEST2. If I'm looking to see if one of the constants was set in the variable, I use &, right? if(($value & TEST1) == TEST1) { echo 'TEST1 flag was set.'; } if(($value & TEST2) == TEST2) { echo 'TEST2 flag was set.'; } I know that works, but is that the best way? Been a while since I played with this... :)Just if($value & TEST1) { ... } is enough.