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Date: Wed, 05 Aug 2015 20:57:02 +0200
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To: Nicolas Grekas <nicolas.grekas+php@gmail.com>, 
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Subject: Re: [PHP-DEV] realpath() on MacOSX doesn't normalize the case of
 characters
From: cmbecker69@gmx.de (Christoph Becker)

On 05.08.2015 at 17:30, Nicolas Grekas wrote:

>> For windows, there is no path normalization either btw. It would makes
>> realpath more expensive.
> 
> I don't know what you mean by "no path normalization", but as far as the
> case is concerned, there IS normalization:
> var_dump(realpath(strtolower(__FILE__)));
> var_dump(realpath(strtoupper(__FILE__)));
> 
> displays two times exactly the same string on Windows

FWIW, this case normalization happens in tsrm_realpath_r() by virtue of
FindFirstFile()[1] and later using the reported filename[2].

[1]
<https://github.com/php/php-src/blob/php-7.0.0beta2/Zend/zend_virtual_cwd.c#L872>
[2]
<https://github.com/php/php-src/blob/php-7.0.0beta2/Zend/zend_virtual_cwd.c#L1143>

-- 
Christoph M. Becker