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Fix Performance Issues with XAMPP on Windows

By default XAMPP comes installed with Mod-PHP. Mod-PHP is usually the way-to-go to execute PHP within the Apache process, which is handling the request. The problem is the poor performance of Mod-PHP in XAMPP especially on Windows.

If you are experiencing poor performance of the Pimcore/Symfony stack, try switching out Mod-PHP with FastCGI in your XAMPP installation.

Download FastCGI Module for Apache

You can download the latest version of the FastCGI Module for Apache at https://www.apachelounge.com/download/. Depending on your XAMPP installation download either the 32 Bit mod_fcgid-x.x.x-win32-VCXX.zip or the 64 Bit mod_fcgid-x-x-x-win64-VCXX.zip version.

Install the FastCGI Module

Assuming your XAMPP installation is located under C:\xampp, copy the mod_fcgid.so file from the ZIP to C:\xampp\apache\modules.

Enable FastCGI

In order to enable FastCGI for your XAMPP installation you have to edit the configuration file C:\xampp\apache\conf\extra\httpd-xampp.conf. In the PHP-Module setup section comment out the following lines. (Example below is running Apache 2.4 with PHP 7.1)

# PHP-Module setup
LoadFile "C:/xampp/php/php7ts.dll"
LoadFile "C:/xampp/php/libpq.dll"
# comment out the following lines
#LoadModule php7_module "C:/xampp/php/php7apache2_4.dll"
#<FilesMatch "\.php$">
#    SetHandler application/x-httpd-php
#<FilesMatch "\.phps$">
#    SetHandler application/x-httpd-php-source

Add these lines to enable FastCGI.

FcgidInitialEnv PHPRC "C:/xampp/php"
AddHandler fcgid-script .php
FcgidWrapper "C:/xampp/php/php-cgi.exe" .php

After enabling FastCGI phpmyadmin will throw a forbidden exception when navigating to localhost/phpmyadmin. To fix this error add the ExecCGI option in the httpd-xampp.conf to the phpmyadmin directory further below.

Alias /phpmyadmin "C:/xampp/phpMyAdmin/"
<Directory "C:/xampp/phpMyAdmin">
    # add this option to fix the error
    Options ExecCGI
    AllowOverride AuthConfig
    Require local
    ErrorDocument 403 /error/XAMPP_FORBIDDEN.html.var