How to create a phpinfo page All versions of PHP come with a very simple and endlessly useful information function: PHP: phpinfo(); Calling this function inside a PHP page will list all of your PHP configuration information in a tabular format. 1. Open up a simple text editor like Notepad or Textpad (not Microsoft Word or similar). 2. Paste in the following PHP code: PHP: <?php phpinfo();?> 3. Save the file as phpinfo.php. 4. Upload to your webserver.