You can take a website screen short by php
Just check the example websitescreenshort.php ... :)
#First Download Selenium Server: http://selenium-release.storage.googleapis.com/index.html?path=2.39/
#Second Download Web Drivers : https://github.com/facebook/php-webdriver
Now Start the server by the command:
java -jar selenium-server-standalone-2.39.0.jar
http://localhost/php-webdriver/selenium_facebook.php
Now You will the It will open the browser window and open facebook url and then enter some information and get result and screen short and show you. You can check screen in your images directory.
http://rapidsol.blogspot.com/2015/02/code-and-action-testing-with-selenium.html?q=test