Re: repetition of tedious references

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On Wed, July 18, 2007 7:24 am, Olav Mørkrid wrote:
> consider the following statement:
>
> $language =
> isset($_SERVER["HTTP_ACCEPT_LANGUAGE"]) &&
> $_SERVER["HTTP_ACCEPT_LANGUAGE"] != "" ?
> $_SERVER["HTTP_ACCEPT_LANGUAGE"] : "*";

You can do it nicely in 2:
$language = isset($_SERVER['HTTP_ACCEPT_LANGUAGE']) ?
$_SERVER['HTTP_ACCEPT_LANGUAGE'] : '';
if ($language == '') $language = '*';

> when using strings in arrays that may be non-existing or empty, you
> have to repeat the reference  *three* times, which gets excessive and
> unreadable.
>
> is there any way to only have to write
> $_SERVER["HTTP_ACCEPT_LANGUAGE"] only once?

Not for this, I don't think...

PHP 6 or 5.3 might have something where you could do:

(expression) ? : '';

And the result of (expression) would be the implied result between ? :

But you have a different test (isset) from the result (actual value)
so that won't help.

-- 
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Know what I want?
I want you to buy a CD from some indie artist.
http://cdbaby.com/browse/from/lynch
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