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Re: loose thinking [message #176782 is a reply to message #176781]

Tue, 24 January 2012 13:04

alvaro.NOSPAMTHANX
Messages: 277
Registered: September 2010

Karma:

Senior Member

El 24/01/2012 11:57, M. Strobel escribió/wrote:
> I hate this sloppiness of PHP:
>
> strobel@s114-intel:~> php -a
> Interactive shell
>
> php> $a[null] = 'you are Nothing';
> php> var_dump($a);
> array(1) {
> [""]=>
> string(15) "you are Nothing"
> }
> php> $i=null;
> php> $a[$i] = 'you are Nothing';
> php> var_dump($a);
> array(1) {
> [""]=>
> string(15) "you are Nothing"
> }
> php> var_dump(key($a));
> string(0) ""
>
> There is no difference between an empty string and null in array indexing. That is
> stupid. Why does the language not just respect my definitions?

Because your make your definitions fit in something that already have a
previous definition. String keys must be integers or strings, as documented:

http://es.php.net/manual/en/language.types.array.php#language.types.array.s yntax.array-func

It's the same situation where you pass a float to a function that's
defined to expect a string: your param will be cast to the target data type.

As about the array key definition, a key is an identifier so I think
it's reasonable to make it a string.

Having arrays where keys can be any arbitrary data type looks like an
(ahem) interesting idea but you'll have to implement it yourself. If it
can actually be done in pure PHP, the tool is possibly the ArrayIterator
interface:

http://es.php.net/manual/en/class.arrayiterator.php

--
-- http://alvaro.es - Álvaro G. Vicario - Burgos, Spain
-- Mi sitio sobre programación web: http://borrame.com
-- Mi web de humor satinado: http://www.demogracia.com
--

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[Message index]

		loose thinking By: M. Strobel on Tue, 24 January 2012 10:57
		Re: loose thinking By: alvaro.NOSPAMTHANX on Tue, 24 January 2012 13:04
		Re: loose thinking By: M. Strobel on Tue, 24 January 2012 13:32
		Re: loose thinking By: The Natural Philosoph on Tue, 24 January 2012 13:41
		Re: loose thinking By: Jerry Stuckle on Tue, 24 January 2012 14:35
		Re: loose thinking By: Peter H. Coffin on Tue, 24 January 2012 14:16
		Re: loose thinking By: M. Strobel on Tue, 24 January 2012 16:35
		Re: loose thinking By: The Natural Philosoph on Tue, 24 January 2012 16:59
		Re: loose thinking By: M. Strobel on Tue, 24 January 2012 18:11
		Re: loose thinking By: Thomas 'PointedEars' on Wed, 25 January 2012 03:49
		Re: loose thinking By: Peter H. Coffin on Wed, 25 January 2012 13:58
		Re: loose thinking By: Thomas 'PointedEars' on Wed, 25 January 2012 19:37
		Re: loose thinking By: alvaro.NOSPAMTHANX on Tue, 24 January 2012 15:20
		Re: loose thinking By: The Natural Philosoph on Tue, 24 January 2012 15:43
		Re: loose thinking By: M. Strobel on Tue, 24 January 2012 18:43
		Re: loose thinking By: Arno Welzel on Tue, 24 January 2012 16:02
		Re: loose thinking By: M. Strobel on Tue, 24 January 2012 16:28

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