Re: Re[2]: [PHP] Need a more elegant way of bitwise ORing values
On Thu, 2007-06-14 at 00:33 +0100, Richard Davey wrote: > Hi Richard, > > Wednesday, June 13, 2007, 6:44:55 PM, you wrote: > > >> if ($allow_fraction) > > > //Should we warn you that $allow_fraction is not actually defined?... > > Should I warn you that to save everyone's sanity I only posted what was > needed from the code? ;) $allow_fraction came from a function > parameter. I'd type hint it to boolean if PHP allowed, but alas ... > > > $flags |= FILTER_FLAG_ALLOW_FRACTION; > > Yup, Robert showed this already in this thread. Nice short-cut, wasn't > aware it worked with that operator. That's definitely my "learnt > something new" for today. I wonder what else it works for? (besides > the obvious += -=) http://ca3.php.net/manual/en/language.operators.php There's quite a few. Cheers, Rob. -- .. | InterJinn Application Framework - http://www.interjinn.com | :: | An application and templating framework for PHP. Boasting | | a powerful, scalable system for accessing system services | | such as forms, properties, sessions, and caches. InterJinn | | also provides an extremely flexible architecture for | | creating re-usable components quickly and easily. | `' -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re[2]: [PHP] Need a more elegant way of bitwise ORing values
Hi Richard, Wednesday, June 13, 2007, 6:44:55 PM, you wrote: >> if ($allow_fraction) > //Should we warn you that $allow_fraction is not actually defined?... Should I warn you that to save everyone's sanity I only posted what was needed from the code? ;) $allow_fraction came from a function parameter. I'd type hint it to boolean if PHP allowed, but alas ... > $flags |= FILTER_FLAG_ALLOW_FRACTION; Yup, Robert showed this already in this thread. Nice short-cut, wasn't aware it worked with that operator. That's definitely my "learnt something new" for today. I wonder what else it works for? (besides the obvious += -=) Cheers, Rich -- Zend Certified Engineer http://www.corephp.co.uk "Never trust a computer you can't throw out of a window" -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: Re[2]: [PHP] Need a more elegant way of bitwise ORing values
2007. 06. 13, szerda keltezéssel 15.42-kor Tijnema ezt írta:
> On 6/13/07, Richard Davey <[EMAIL PROTECTED]> 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?
> > >>
> > >> > >> $flags = array();
> > >>
> > >> if ($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:
>
> $filter['flags'] = FALSE;
>
> if ($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
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
Re: Re[2]: [PHP] Need a more elegant way of bitwise ORing values
On 6/13/07, Richard Davey <[EMAIL PROTECTED]> 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?
>>
>> > $flags = array();
>>
>> if ($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:
Little bit simpler huh?
Tijnema
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
Re[2]: [PHP] Need a more elegant way of bitwise ORing values
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?
>>
>> > $flags = array();
>>
>> if ($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
--
Zend Certified Engineer
http://www.corephp.co.uk
"Never trust a computer you can't throw out of a window"
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
