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Date: Sun, 30 Dec 2007 20:16:07 +0800
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To: "Stanislav Malyshev" <stas@zend.com>
Cc: "php-dev List" <internals@lists.php.net>
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References: <28139bc0712300135s399eb826k87a061a52eac5066@mail.gmail.com>
	 <47776A7E.3030304@zend.com>
Subject: Re: [PHP-DEV] early class binding revisited
From: phpxcache@gmail.com (phpxcache)

> Compiler shouldn't generate different code. Unqualified name is resolved
>   at runtime, but code should be the same whatever resolution was made.
> Did you check that different code is indeed generated?
zend_compile.c
===============
			if (zend_hash_find(CG(class_table), lcname,
Z_STRLEN(class_name->u.constant)+1, (void**)&pce) == SUCCESS &&
			    (*pce)->type == ZEND_INTERNAL_CLASS) {
			    /* There is an internal class with the same name exists.
			       PHP will need to perform additional cheks at run-time to
			       determine if we assume class in current namespace or
			       internal one. */
				*fetch_type |= ZEND_FETCH_CLASS_RT_NS_CHECK;
			}

it's an optimization and assume that internal class never change

let me guess, if you have php_abc.so which have "internal" (well, 3rd
party) "class abc" not loaded when you encode php files with
ZendEncoder
namespace mynamespace;
var_dump(new abc());
but you do load file for production server, you still get "undefined
class mynamespace::abc" at runtime, internal class abc is never
checked.