PHP searches for php.ini in the following locations (in
   order):

     * PHPIniDir directive (Apache 2 module only)
     * HKEY_LOCAL_MACHINE\SOFTWARE\PHP\IniFilePath
     * The PHPRC environment variable
     * Directory of PHP (for CLI), or the web server's directory (for
       SAPI modules)
     * Windows directory (C:\windows or C:\winnt)

   If you are running Apache 2, the simpler option is to use the
   PHPIniDir directive (read the installation on Apache 2 page),
   otherwise your best option is to set the PHPRC environment variable.
   This process is explained in the following FAQ entry.

     Note: If you're using NTFS on Windows NT, 2000, XP or 2003, make
     sure that the user running the web server has read permissions to
     your php.ini (e.g. make it readable by Everyone).

# For PHP 4
Action application/x-httpd-php "/php/php.exe"

# For PHP 5
Action application/x-httpd-php "/php/php-cgi.exe"

# specify the directory where php.ini is
SetEnv PHPRC C:/php

Installing as an Apache module

   You need to insert these two lines to your Apache httpd.conf
   configuration file to set up the PHP module for Apache 2.0:

   Example 2-6. PHP and Apache 2.0 as Module
# For PHP 4 do something like this:
LoadModule php4_module "c:/php/sapi/php4apache2.dll"
AddType application/x-httpd-php .php

# For PHP 5 do something like this:
LoadModule php5_module "c:/php/php5apache2.dll"
AddType application/x-httpd-php .php

# configure the path to php.ini
PHPIniDir "C:/php"

     Note: Remember to substitute the c:/php/ for your actual path to
     PHP in the above examples. Take care to use either php4apache2.dll
     or php5apache2.dll in your LoadModule directive and not
     php4apache.dll or php5apache.dll as the latter ones are designed to
     run with Apache 1.3.x.

   Warning

   Don't mix up your installation with DLL files from different PHP
   versions. You have the only choice to use the DLL's and extensions
   that ship with your downloaded PHP version.

Chapter 4. Runtime Configuration

The configuration file

   The configuration file (called php3.ini in PHP 3, and simply php.ini
   as of PHP 4) is read when PHP starts up. For the server module
   versions of PHP, this happens only once when the web server is
   started. For the CGI and CLI version, it happens on every invocation.

   The default location of php.ini is a compile time option (see the FAQ
   entry), but can be changed for the CGI and CLI version with the -c
   command line switch, see the chapter about using PHP from the command
   line. You can also use the environment variable PHPRC for an
   additional path to search for a php.ini file.

   If php-SAPI.ini exists (where SAPI is used SAPI, so the filename is
   e.g. php-cli.ini or php-apache.ini), it's used instead of php.ini.

     Note: The Apache web server changes the directory to root at
     startup causing PHP to attempt to read php.ini from the root
     filesystem if it exists.

ScriptAlias /php/ "c:/php/"
   AddType application/x-httpd-php .php .php4 .php3 .phtml
   #AddType application/x-httpd-php-source .phps
   Action application/x-httpd-php "/php/php.exe"



    #php 5 ab hier einbinden----------------
ScriptAlias /php5/ "c:/php5/"
   AddType application/x-httpd-php5 .php5

   Action application/x-httpd-php5 "/php5/php-cgi.exe"
   SetEnv PHP5RC /php5/