This shows all integers from 1 to 10 that have the 2 least significant bits set:
<?php for ($i = 1; $i <= 10; $i++) { if ($i & 3) { echo($i . "\n"); } } ?> bvr. Charlie Killian wrote: >How can I test if a number only has on bit set? > >So testing different numbers will return TRUE or FALSE: > >testing 00010000 would return TRUE. >testing 00000011 would return FALSE. > >TIA > >Charlie > > > > > -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php