We have the great php script that will give all these details and more about your server.
Download it here and simply upload it to your server: Server Test Script
Unix or Linux
PHP safe_mode disabled
shell_exec() function available
PHP CLI version installed
4.0.4+ with all database privileges enabled
Optional, but needed if you want to use the verification code feature of the software.
Optional, but offers some advanced features (https support, proxy support)
If this setting is configured it may prevent the software from being able to locate the CLI version of PHP and/or the MySQL command line programs which can be used for database backups.