Tom Worster wrote:
> there's a control structure i wish php had: a simple block that you can
> break out of, e.g.
>
> block {
>
> if ( condition )
> break;
>
> blah...
> blah...
>
> if ( another condition )
> break;
>
> blah...
> blah...
>
> etc...
>
> }
>
> the block is just like a loop except that it is executed once only.
>
> this would be a handy structure for writing input validation code. the blah
> blah fragments can be used for opening files, talking to the db,
> manipulating strings, processing dates and times, etc., the conditions for
> testing if the input is unacceptable.
>
> i'm sure many of the programmers here do this kind of thing routinely and
> have their own habits and solutions. i'd be curious what they are. please
> let us know!
>
>
> i guess i ought to go first. it's fugly but it works:
>
> $once = true;
> while ( $once ) {
> $once = false;
>
> stuff using break where needed ...
>
> }
>
> tom
>
>
>From the PHP manual:
do {
if ($i < 5) {
echo "i is not big enough";
break;
}
$i *= $factor;
if ($i < $minimum_limit) {
break;
}
echo "i is ok";
/* process i */
} while (0);
--
Thanks!
-Shawn
http://www.spidean.com
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