Install the SDK To install the Facebook PHP SDK run the following command (this example uses composer) in a terminal window on your server, in your project folder: my-server:my-php-project$ composer require facebook/graph-sdkThis command will install the SDK in the /vendor folder of your project. my-server:my-php-project$ ls -al vendor/facebook/ total 0 drwxr-xr-x 3 khoover 1876110778 96 Dec 12 10