flickr favorite counter (code for Wordpress plug-in)

I have customized the Wordpress plug-in " TanTan Noodles Flickr photo album " for my needs.
Example: http://eosfotografie.n​l …am-ij-on-a-rainy-day.html

The only thing I want to add is the counter for the favorites. Does any know the code for adding the flickr favorite counter to the plug-in. I know where to add the code. Only the the code to use for it not

Many thanks in advance.

found something. Going to write some code and test.

I have to use one of this Updated Methods
favorites_getList
favorites_getPublicLis​t

I hope this is the solution

I'm a step closer to a solution. It links to the facorite page of flickr. But the counter does not work. There a 21 favorites and the code says 0

0 count favorites - test 1

I wrote this code

unfortunately the counter does not work. I'm not a PHP guru. Just a amateur. Has any one an idea how to solve this

Many thanks