Multiple PHP versions in XAMPP configurations

httpd-xampp.conf

# PHP 8.1.7 Set-up
ScriptAlias /php817/ "C:/xampp/php817/"
Action application/x-httpd-php817-cgi "/php817/php-cgi.exe"
<Directory "C:/xampp/php817">
    AllowOverride None
    Options None
    Require all denied
    <Files "php-cgi.exe">
          Require all granted
    </Files>
    
    SetEnv PHPRC "C:/xampp/php817"
</Directory>

# Varen PHP 8.1.7
<Directory "C:/xampp/htdocs/varen/public">
    UnsetEnv PHPRC
    <FilesMatch "\.php$">
        php_flag engine off
        SetHandler application/x-httpd-php817-cgi
    </FilesMatch>
</Directory>