This tutorial assumes you are already logged in to your Joomla admin panel.
Viewing the system information will allow you to see the PHP information and what directories are writable.
1) Click Help.
2) Then System Info.
The first page will show your system information such as your database, PHP and Joomla versions.
3) Click PHP Settings.
Here you can view what value your PHP settings are set to.
4) Click Configuration File.
This is where you can view the settings in your configuration.php file.
5) Go to Directory Permissions.
This page will show what directories are writeable.
6) Click PHP Information.
This is where you can view all of your PHP information.
That's it! You now know how to view your system information in Joomla.