Re: Re[2]: [PHP] Need a more elegant way of bitwise ORing values
| From: | Zoltán Németh | Date: | Wed, 13 Jun 2007 14:09:16 +0000 |
| Subject: | Re: Re[2]: [PHP] Need a more elegant way of bitwise ORing values | ||
| References: | 1 2 3 4 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-256858@lists.php.net to get a copy of this message | ||
2007. 06. 13, szerda keltezéssel 15.42-kor Tijnema ezt írta:
> On 6/13/07, Richard Davey <rich@corephp.co.uk> wrote:
> > Hi Zoltán,
> >
> > Wednesday, June 13, 2007, 2:21:18 PM, you wrote:
> >
> > > 2007. 06. 13, szerda keltezéssel 14.13-kor Richard Davey ezt írta:
> > >> Hi all,
> > >>
> > >> Can anyone think of a more elegant way of achieving the following?
> > >>
> > >> <?php
> > >> $flags = array();
> > >>
> > >> if ($allow_fraction)
> > >> {
> > >> $flags[] = FILTER_FLAG_ALLOW_FRACTION;
> > >> }
> > >>
> > >> if ($allow_thousand)
> > >> {
> > >> $flags[] = FILTER_FLAG_ALLOW_THOUSAND;
> > >> }
> > >>
> > >> if ($allow_scientific)
> > >> {
> > >> $flags[] = FILTER_FLAG_ALLOW_SCIENTIFIC;
> > >> }
> > >>
> > >> if (count($flags) > 0)
> > >> {
> >
> > > $tmp = FALSE;
> > > foreach ($flags as $flag) {
> > > $tmp = $tmp | $flag;
> > > }
> > > $filter['flags'] = $tmp;
> >
> > Nice one, thank you. Same amount of code but avoids the eval() which
> > is all I wanted.
> >
> > Cheers,
> >
> > Rich
> Nice one, but you could also do it like this:
>
> <?php
> $filter['flags'] = FALSE;
>
> if ($allow_fraction)
> {
> $filter['flags'] = $filter['flags'] | FILTER_FLAG_ALLOW_FRACTION;
> }
>
> if ($allow_thousand)
> {
> $filter['flags'] = $filter['flags'] | FILTER_FLAG_ALLOW_THOUSAND;
> }
>
> if ($allow_scientific)
> {
> $filter['flags'] = $filter['flags'] | FILTER_FLAG_ALLOW_SCIENTIFIC;
> }
>
> ?>
>
> Little bit simpler huh?
in this case yes.
but if he wants to use the $flags array to anything else besides
creating $filter['flags'] from it, then my solution would be better
greets
Zoltán Németh
>
> Tijnema