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Date: Thu, 9 Feb 2006 17:06:08 -0500
To: internals@lists.php.net
Subject: Re: [PHP-DEV] 'odd' handling of $moo['bar'] where $moo is a string
From: spam@yghe.net (Evan Priestley)

When indexing a string, the string is cast to an integer:
	(int)'file' == 0

When in a conditional expression, the string is cast to a boolean:
	(bool)'file' == true

It isn't necessarily a fatal error, consider:
	$keys[ '3' ]

- Evan


On Feb 9, 2006, at 4:54 PM, Ian P. Christian wrote:

> Can someone explain the following to me?
>
> echo "DEBUG:\n";
> var_dump($keys);
> var_dump($keys['file']);
> var_dump(isset($keys['NOTEXISTING']));
> var_dump(isset($keys['file']));
> exit;
>
>
> DEBUG:
> string(19) "myConsoleController"
> string(1) "m"
> bool(true)
> bool(true)
>
>
> Now, it seems that $keys['file'] == $keys[0], which makes sense why  
> the issets
> return true. However...
> if ('file') echo 'true';
> will print moo, therefore 'file' == 1, not 0. Why is this different  
> when using
> it as a string offset?
> IMO, using a string as a string offset, a fatal error should be  
> raised.
>
> Kind Regards,
>
> -- 
> Ian P. Christian
> http://pookey.co.uk
>
> -- 
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