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Date: Mon, 25 May 2015 21:02:52 +0300
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Subject: Re: [PHP-DEV] ::class wrong case
From: inefedor@gmail.com ("Nikita Nefedov")

On Mon, 25 May 2015 20:47:32 +0300, Marc Bennewitz <dev@mabe.berlin> wrote:

> Hi,
>
> I have noted that detecting a class name using "::class" it will return  
> the called case instead of the original case.
> see http://3v4l.org/97K36
>
> That's annoying as I like to check the right class case on autoload to  
> detect mistakes.
>
> Sure, class names in PHP are case-insensitive but filesystems aren't and  
> most autoloader using the FS to find the right file. To catch such kind  
> of mistakes I would like to implement a fast check in my autoloader to  
> get noted on development instead on production. It's currently only  
> possible with ReflectionClass but this will be much slower as with  
> ::class.
>
> Are there any reasons to get the called case of the class instead or the  
> original one?
>
> Marc
>

This happens because ::class construction is evaluated at compiled time,  
without triggering autoloader. That means compiler doesn't know what will  
be the actual name of a class, it just gives you what you asked for.

> It's currently only possible with ReflectionClass but this will be much  
> slower as with ::class.

It's only possible with ReflectionClass if this class was already loaded.  
There's one way for your autoloader to know if the class name has  
characters in a wrong case - build a class map and do a check based on  
this map.