The SaveTags action will save all the tags for one module and itemId.

The function espect as parameters the id and the strings for save.

The strings is a post that contain all the words separated by spaces.
This parameter must be by POST
for work fine with spaces and strange characters.

An example is:

POST /Module/jsonSaveTagsAction
With
$_POST['id'] = 1;
$_POST['string'] = 'This is a test for save tags';

The function return an execption is the id is null or empty
and void on sucess.