How to verify GD and Freetype support

Question

I'm running a server with ubuntu 9.10.

I'm trying to enable captcha support for our wordpress blog contact form and the instructions say that I'll need to "verify that PHP has GD support and Freetype support compiled in"

How can I verify this?

Additional information here: http://wordpress.org/support/topic/323395

-M

Answer 1

In command line:

GD Support:

$ php -i | grep "GD "
(keep the space, it's necessary)

FreeType Support:

$ php -i | grep "FreeType"

Answer 2

Make a php file (like index.php) with the phpinfo() function and view it in the browser:

<?php
phpinfo();
?>

Also, I think you might just need to do the following to install it:

sudo apt-get install php5-gd

Answer 3

From commandline:

php -m