The tags helper is a collection of useful methods:
Tags::clean($data)Clean function to convert data into an array.
Tags::get($string)This method converts the $string depending on the condition:
Tags::get(‘[year]‘)Returns the year
Tags::get(‘[sitetitle]‘)Returns the site title constant (SITETITLE)
Tags::get(‘[siteemail]‘)Returns the site email constant (SITEEMAIL)
echo Tags::get(‘[feedburner username]‘);Generates a Feedburner subscriber form
echo Tags::get(‘[googleplusbox username]‘);Generates a Google+ box
echo Tags::get(‘[twitterfollowbutton username]‘);Generates a Twitter follow button for the given username
echo Tags::get(‘[twittersharebutton username]‘);Generates a Twitter share button for the given username
echo Tags::get(‘[youtube id]‘);Generates an embed iframe for youtube, pass the video id only
echo Tags::get(‘[youtubesub username]‘);Generates a youtube subscribe widget
echo Tags::get(‘[vimeo id]‘);Generates an embed iframe for vimeo, pass the video id only