RE: Re[6]: [PHP] Need a more elegant way of bitwise ORing values

________________________________ > From: Richard Davey [mailto:rich@corephp.co.uk] > Sent: Wed 13/06/2007 15:19 > To: PHP List > > > Hi Robert, > > Wednesday, June 13, 2007, 3:15:39 PM, you wrote: > > > It's terribly verbose and inefficient... > > > <?php > > > $filter['flags'] = 0; > > > if( $allow_fraction ) > > { > > $filter['flags'] |= FILTER_FLAG_ALLOW_FRACTION; > > } > > > if( $allow_thousand ) > > { > > $filter['flags'] |= FILTER_FLAG_ALLOW_THOUSAND; > > } > > > if( $allow_scientific ) > > { > > $filter['flags'] |= FILTER_FLAG_ALLOW_SCIENTIFIC; > > } > > ?>> > > I don't think it's *terribly* verbose, as it has good sentence structure > to it, but your version is certainly more efficient, hence I've > swapped to that. Any other takers? ;) Well, I don't know about more efficient but I'd be terribly tempted to express it like this: $filter['flags'] = $allow_fraction ? FILTER_FLAG_ALLOW_FRACTION : 0 | $allow_thousand ? FILTER_FLAG_ALLOW_THOUSAND : 0 | $allow_scientific ? FILTER_FLAG_ALLOW_SCIENTIFIC : 0; Whether you think this is more readable and/or less verbose probably depends on personal taste! ;) --------------------------------------------------------------------- Mike Ford, Electronic Information Services Adviser, Learning Support Services, Learning & Information Services, JG125, James Graham Building, Leeds Metropolitan University, Headingley Campus, LEEDS, LS6 3QS, United Kingdom Email: m.ford@leedsmet.ac.uk Tel: +44 113 812 4730 Fax: +44 113 812 3211 To view the terms under which this email is distributed, please go to http://disclaimer.leedsmet.ac.uk/email.htm