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Date: Fri, 9 Nov 2012 14:52:39 +0100
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To: Sara Golemon <pollita@php.net>
Cc: PHP internals <internals@lists.php.net>
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Subject: Re: [PHP-DEV] Object comparison
From: pierre.php@gmail.com (Pierre Joye)

hi!

On Fri, Nov 9, 2012 at 1:07 AM, Sara Golemon <pollita@php.net> wrote:
> From: http://php.net/manual/en/language.operators.comparison.php
>
> An object compared to anything which is not a bool, null, or object
> should result in the object appearing to be greater than the other
> operand.  For example:
>
> $a = new stdClass();
> $b = new stdClass();
>
> var_dump(null < $a);
> var_dump(false < $a);
> var_dump(true == $a);
> var_dump($a == $b);
> var_dump(0 < $a);
> var_dump(1 < $a); // false
> var_dump(2 < $a); // false
> var_dump("foo" < $a);
> var_dump("2" < $a);
> var_dump(tmpfile() < $a);
>
> Based on docs, I expect all nine of these to yield true, however in
> practice, the two marked "false" come out as false because the RHS
> object is converted to an integer (1), contrary to the docs.
>
> Doc bug? Or code bug?  I'm inclined to call it a code bug, but wanted
> others' thoughts.

As stated by other before, comparing scalars and objects sound wrong
in the 1st place. But I have seen way too many weird codes relying on
weird things :). That's why I would not be in favor of changing
anything in this area as some code out there may rely on that (have
the feeling that object comparison has been like that since 5.0).

Cheers,
--
Pierre

@pierrejoye | http://blog.thepimp.net | http://www.libgd.org