[PHP-DEV] Re: Array merge changes VALUE of keys, never mind the type From: Steve Meyers (steve-php-dev <email protected>)
Date: 09/28/01

The "+" operator can be used with arrays, and it performs the same function
as array_merge. However, it does NOT reorder numeric keys -- it overwrites
them. So, you can use one or the other, depending on which type of
functionality you want.

See the user contributed notes at
http://www.php.net/manual/en/function.array-merge.php

The problem is really a fundamental flaw in PHP's arrays -- there is no
actual difference between associative and non-associative arrays. They are
both implemented as associative. A better approach would probably be to
have them be two different variable types, with different syntax.

It would be nice if there was an array_merge_associative that was exactly
like the "+" operator. I'd write it myself if I wasn't so busy with
schoolwork :)

"Nick Lindridge" <nick <email protected>> wrote in message
news:20010928183522.B8089 <email protected>
> Hi,
>
> Regarding what seems an array merge bug. This was
> quickly made bogus (:-), but I think that the
> point was missed. The issue isn't that the key
> was made numeric - I had it numeric and not a string
> in the first place. The issue is that the key value
> was changed.
>
> The array element key values had a meaning - otherwise
> I wouldn't have bothered by using keys at all.
>
> array_merge should not change the value of keys. It should
> just merge! If not a bug, it is a flaw.
>
> Nick
> 

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