note 66452 added to language.operators.bitwise

Bitwise operators and boolean operations are not the same. Booleans can work on individual bits, but not on bytes. A byte contains 8 bits. If you do 1 && 0 you will get 0, but if you do 7 && 0 you will also get 0, because internally anything that is non-zero is true, and zero is false. So 5 && 2 is 1.. But if you do 5 & 2, noticed one ampersand not two, which in binary is 101, 010, bit-wise and, will get you 111, or 7. Do a search on the net for "truth tables bit operators XOR AND NOT OR", or shorten it to "truth tables XOR" and hunt down pages with truth tables for bit operations. For instance I fount this page: http://andercheran.aiind.upv.es/~amstrad/docs/logic.html ---- Server IP: 216.194.113.175 Probable Submitter: 68.35.1.172 ---- X-Spam-Status: No, hits=3.1 required=5.0 tests=DATE_MISSING,FROM_NO_LOWER autolearn=no version=2.64 ---- Manual Page -- http://www.php.net/manual/en/language.operators.bitwise.php Edit -- http://master.php.net/note/edit/66452 Del: integrated -- http://master.php.net/note/delete/66452/integrated Del: useless -- http://master.php.net/note/delete/66452/useless Del: bad code -- http://master.php.net/note/delete/66452/bad+code Del: spam -- http://master.php.net/note/delete/66452/spam Del: non-english -- http://master.php.net/note/delete/66452/non-english Del: in docs -- http://master.php.net/note/delete/66452/in+docs Del: other reasons-- http://master.php.net/note/delete/66452 Reject -- http://master.php.net/note/reject/66452 Search -- http://master.php.net/manage/user-notes.php