Description:
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I really don't understand how it "If safe mode is enabled, the uid of the script is ADDED to the realm part of the WWW-Authenticate header." increase security. And why this behavior is not optional (without disabling all safe_mode restriction).

About other strange behavior of this functionality (for my point of view) see below.



Reproduce code:
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safe_mode=On / pcre=enabled

1. Example 34.1. Basic HTTP Authentication example from http://www.php.net/manual/en/features.http-auth.php

2. Example 34.2. Digest HTTP Authentication example from http://www.php.net/manual/en/features.http-auth.php

Expected result:
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1. Consider of docs the note "If safe mode is enabled, the uid of the script is ADDED to the realm part of the WWW-Authenticate header." I expect realm=uid My Realm or realm=My Realm uid


2. Digest http auth ;)

Actual result:
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1. realm=uid
I.e. php REPLACING realm at safe_mode=on with uid of script.

2. Always changed to Basic http auth