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I do not know if my tile line is clear enough… My problem is:
I have a JS application that needs to wait for an event on the server. At the moment it polls continuous the server data via XMLHttpRequest every second.
What I am thinking about is: Is it possible to make the call wait until for example a variable in PHP changes?
I hope that my question is clear enough.
Thanks!
You’re looking for long polling (colloquially known as Comet). There are many examples on SO and elsewhere.