javascript - 2 simultaneously ajax request, respond asynchronously -


this question has answer here:

this question different because check solution , didn't answer. pass on , can see end of question, how.

first make ajax request (request 1) php script , script in it's loop calculate , store in file when each iteration finished.

simultaneously request 1 there ajax request (request 2) php script read modified file request 1.
request 2 executing each 0.5 second , read file content.

what expect request 2 respond file content when request 1 in progress. of request 2 requests send each 0.5 second pending, , respond when request 1 finished , send it's data. somehow can say, these tow request send simultaneously request 2 respond when request 1 finished , complete.

could tell me fault please?

thanks in advance

-------------------- edit --------------------

i using yii framework , problem occurred because of existence of default filter action in controller php scripts exist
luck ;)

i'm not sure can want using ajax. being said possible using server-sent events (a.k.a. eventsource). api allows data sent javascript server on period of time (in case short one). you'll need modify both php script , js bit, it's not hard connection , running.


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