Function Call:

total_contacts_opened_tag

Purpose:

Returns a total count of all contacts who have  opened any HTML email where the pixel tracking image has been read, for each tag, in date order.  Optionally (but recommended) between specified dates. (Consider a cron job to capture this daily and store the result somewhere else to plot change)

Parameters:

date_start
date_end

format: YYYY-MM-DD

Return:

For each tag

tag_id
tag_name
opens

-count of broadcast or autoresponder message opens.

status – if error

Example:

http://example.com/a.php/api/total_contacts_opened_tag?api_key=0c68398f&date_start=2018-07-31&date_end=2018-10-30