Question

I am wondering if anyone could show, or explain with examples, how facebook checks its database for new messages? It seems to do it periodically, without loading the page. What would be the best way to achieve this in a PHP/MySQL/Jquery script?

Any help is always appreciated!
Cheers, Lea

Answer 1

you can do this: usign periodical updater

<span id="inbox-title"></span>


<script>

$.PeriodicalUpdater('/path/to/service', {
  method: 'get',          // method; get or post
  minTimeout: 1000,       // starting value for the timeout in milliseconds
  maxTimeout: 8000,       // maximum length of time between requests

}, function(data) {
   $('#inbox-title').html('you have ' + data + 'new messages');

});


</script>

another option is to bind the onmousemove event and make the ajax call when than happes