Question

I need to create an event listener. I’m a novice so be kind 🙂

Basically I am on page1.php (php file); I want inside a loop to go check page2.xml (xml file) for some information which should be received at some point. Either check it all the time, or wait and every 5 minutes or so to see if some information has been received there. Either of them work for me.

If no info has been received after a few minutes, then I want to run again the loop (until it is received), otherwise, move forward and do something with my newly received information. This part I have no problem with, just the event listener itself. I couldn’t find the function I should be using anywhere. 🙁 I only need to check and retrieve the content of the xml file every so often.

I am not so sure how I should go about this if there isn’t just a function which does this, but I couldn’t find much when I searched for “event listener php”.

Any help would be appreciated: reference to tutorials/sample code/even just telling me what keywords I should be looking for or what I need to learn first in order to do this.

Thanks!

Answer 1

I did the following:

Automatically saved to database every time something new came in.

Then ran a php loop that every few minutes checked to see if there is something new in the database which fits the parameters of this new event (including that it happenned within the timeframe of the past few minutes). I used flush(); and then sleep(120); in the loop to get the loop to keep running every few minutes, until the new info came in in which case it will break(); or die();.