Is it possible through a php script called by cron to force javascript to be executed on a remote site?

Question

PHP

Can initiate something on the server by calling a php script. What are the options?

Answer 1

phantom.js/nightmare.js run this from PHP.

Answer 2

only if you implement on JS websocket or periodic ajax requests
or SSE (not supported in IE) www.w3schools.com/html/html5_serversentevents.asp
otherwise nothing