What about a similar construct for checking truth? eg, $foo = first_true($bar, $baz, $bang);
returns the value of the first variable that passes the if(isset($var) && !empty($var)) test. On 10/31/05, Ford, Mike <[EMAIL PROTECTED]> wrote: > On 29 October 2005 22:56, Greg Beaver wrote: > > > For an operation as complicated as "use the first variable > > that exists" > > I would be most comfortable with: > > > > $d = first-existing: $a, $b, $c; > > That's a horrible syntax, but a fantastic name for a language construct to do > the job. Even better might be (something like) first_isset($a, $b, $c) which > tells you precisely what's happening: you get the first value that passes the > isset() test. > > I also find the ?? / ??= suggestion very attractive - it would have been my > suggestion for a suitable operator. > > Cheers! > > Mike > > --------------------------------------------------------------------- > 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: [EMAIL PROTECTED] > Tel: +44 113 283 2600 extn 4730 Fax: +44 113 283 3211 > > > To view the terms under which this email is distributed, please go to > http://disclaimer.leedsmet.ac.uk/email.htm > > -- > PHP Internals - PHP Runtime Development Mailing List > To unsubscribe, visit: http://www.php.net/unsub.php > > -- ------------- [EMAIL PROTECTED] -- PHP Internals - PHP Runtime Development Mailing List To unsubscribe, visit: http://www.php.net/unsub.php
