1. You have installed Apache 2.2 on a Windows XP Pro system (probably works for other NT solutions as well).
2. PHP5 and PHP4 are installed in C:\PHP5 and C:\PHP4, respectively.

1. Even if you already have php5apache2.dll and php4apache2.dll, download the newest ones from http://www.apachelounge.com/download/ just as klimaks suggested.
   
   Note: There have been many forums saying to use the 2_2 DLLs.  If you download the latest php5apache2.dll and php4apache2.dll from the link above, these are the same DLLs as the 2_2 DLLs that everyone is talking about and confused as hell as to where to download them.  Heck, rename them to 2_2.dll if that really makes you feel happy.  Bottom line, there is a different DLL for 2.0.x and 2.2.x installations.
   
   
2. Read the "Readme First.txt" files included in the above download packages!  They will tell you where to place both the DLLs and the httpd.exe.manifest files in your PHP directory and your Apache /bin directory, respectively.
   
   
3. I'm not sure how important this step is, but I did it just to be safe, seeing as the "Readme First.txt" told me to.  Install the Visual C++ 2005 Redistributable Package (the binary is built with VC 2005).  Download it from http://www.microsoft.com/downloads/details.aspx?familyid=32BC1BEE-A3F9-4C13-9C99-220B62A191EE&displaylang=en
   
   
4. Open up your http.conf file in your Apache installation located at /conf/httpd.conf (gotta' love the Send To -> Notepad)
   
   
5. Add the following lines to the http.conf:
   
   

   #The following lines of configuration are intended to run #PHP5 as the primary PHP language for this server as a #SAPI module along with PHP4 as legacy in CGI/FastCGI mode #Use a regular expression to allow Apache #access to php, php4, php5 or future php6 directories #all in one <Directory> directive <Directory ~ "^C:/php[456]?/">     Options FollowSymLinks     AllowOverride None     Order allow,deny     Allow from all     Satisfy all </Directory> #Two lines below work for both SAPI module and CGI/FastCGI modes AddType application/x-httpd-php .php .php5 AddType application/x-httpd-php4 .php4 #Run PHP5 as SAPI module and PHP4(legacy) as CGI/FastCGI in tandem ScriptAlias /php4/ "c:/php4/" Action application/x-httpd-php4 "/php4/php.exe" LoadModule php5_module "c:/php5/php5apache2.dll" PHPIniDir "C:/php5/" #If the setup above doesn't work out for you, here's how you can do #it the other way around. You can run both versions of PHP in tandem #as CGI/FastCGI, but I can't seem to get both to run as SAPI modules #ScriptAlias /php5/ "c:/php5/" #Action application/x-httpd-php "/php5/php-cgi.exe" #LoadModule php4_module "c:/php4/php4apache2.dll"

   
   Note: I've read that CGI/FastCGI causes more overhead, which is why you should run PHP as a SAPI module instead.  In the case of running both PHP5 and PHP4 as SAPI modules in tandem, I was not able to do this.  As a solution, I ran PHP5 as a SAPI module and PHP4 as CGI/FastCGI for legacy code.  I looked into Godaddy and they use both PHP5 and PHP4 in tandem as CGI/FastCGI.  I think my solution is better.  I can modify my /php4/php.ini to only affect my PHP4 installation and my /php5/php.ini to only affect my PHP5 installation.
   
   If you find a way to run both versions of PHP as SAPI modules please notify me by responding to this thread or e-mailing jed at a place i like to call lavadrop dot com (trying to evade spammers).
   
   Warning from php.net documentation: http://us2.php.net/manual/en/install.windows.apache2.php
   
   By using the CGI setup, your server is open to several possible attacks. Please read our CGI security section to learn how to defend yourself from those attacks.
   
   http://us2.php.net/manual/en/security.cgi-bin.php
   
   
   
   
6. Restart your Apache 2.2 web server.
   
   

Last edited on Sat Sep 2nd, 2006 06:22 pm by jedhunsaker