How to Install the Facebook Like Box on Your Drupal Website also enable php code as input text format

Get facebook likebox code from facebook.com
suppose

<iframe scrolling="no" frameborder="0" allowtransparency="true" src="http://platform.twitter.com/widgets/follow_button.1340179658.html#_=1344687471539&amp;id=twitter-widget-2&amp;lang=en&amp;screen_name=saranquardz&amp;show_count=true&amp;show_screen_name=true&amp;size=m" class="twitter-follow-button" style="width: 243px; height: 20px;" title="Twitter Follow Button"></iframe><iframe src="//www.facebook.com/plugins/likebox.php?href=http%3A%2F%2Fwww.facebook.com%2Fdevsaran.drupal&amp;width=240&amp;height=258&amp;colorscheme=light&amp;show_faces=true&amp;border_color&amp;stream=false&amp;header=false" scrolling="no" frameborder="0" style="border:none; overflow:hidden; width:240px; height:258px;" allowtransparency="true"></iframe>

Then create a block and add avove code also select php code as input tex format

Do you know how to enable php code for input text format?
see below:

Go to Administration > Modules.
Scroll down to the PHP filter module and check the Enabled box. Press the Save Configuration button.
When you will add ant content/block select php code as input method. That's all