Description:
------------
I need to have PHP4 and PHP5 running together on a single Apache virtual server as SAPI modules. Don't ask why.

With every new PHP's main version (4,5) it becomes harder to have the new version running with the old one.

I use .php3, .php4, and .php5 exts; .php is for my currently favorite version. Since the PHP3 had "application/x-httpd-php3" as the Action handler, setting application/x-httpd-php for PHP4 was not a problem. But as PHP5 uses the same, it's quite difficult.

I changed this string in the php5apache.dll file and configured Apache 1.3:

    # PHP 4
    LoadModule php4_module "c:/program files/php436/sapi/php4apache.dll"
    AddType application/x-httpd-php .php
    AddType application/x-httpd-php .php4
    
    # PHP 5
    LoadModule php5_module "c:/program files/php5/php5apache.dll"
    AddType application/x-httpd-ph5 .php5
    SetEnv PHPRC "c:/php.ini"

This works, but the problem is with php.ini. PHP seems not to be willing to load it from anywhere else than WINNT directory. I tried every way documented, but only one works, and only for PHP5:

* PHPIniDir directive (Apache 2 module only)  --  I need Apache 1.3
* HKEY_LOCAL_MACHINE\SOFTWARE\PHP\IniFilePath --  Works for PHP5 only
* Apache's SetEnv PHPRC "c:/"                 --  Doesn't work at all, I tried \ and \\ too
* The PHPRC environment variable              --  Doesn't work at all
* PHP's dir (for CLI) or server's dir (SAPI)  -- I need to set different for 4 and 5
* Windows directory (C:\windows or C:\winnt)  -- I need to set different for 4 and 5

There's also one bug - the first request to PHP version, other than the server's first PHP request used, keeps hanging until the server shutdown. Further are ok.

Reproduce code:
---------------
The Apache's conf is above.

Expected result:
----------------
I would like this to be done:

First, update the documentation to reflect the real state of things; I mean the php.ini location process.

Second, don't unify the important strings like Apache Action name (application/x-httpd-php) and env vars (like PHPRC).
Instead, use different for every main version number (application/x-httpd-php5, PHP5_RC).

Third, do it generally more possible to have concurent versions running on the same virtual server.