Displaying php information
From MyWiki
Displaying phpinfo in Moodle
An administrator can find PHP info in Settings > Site administration > Server > PHP info.
Displaying phpinfo outside of Moodle
To view the phpinfo information:
Create a file called info.php using your text editor, containing this single line:
<?php // Show all information, defaults to INFO_ALL phpinfo(); ?>
Save this file as info.php
Upload this file into the root web accessible folder on your server.
Now open this file in your browser. For example http://<server-name>/info.php