php - How to check data from mysql realtime using ajax post requests? -

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how check data mysql realtime using ajax post requests ?

i use code check in mysql , if user have new message it's echo you have new message text on realtime.

and code post get_data.php every 1 sec , think it's work hard server , client ,

when try it's not work, how can ?

<script type="text/javascript" src="js/jquery-1.4.1.min.js"></script> <form id="idform"/>     <input name="uid" value="1234"/> </form> <div id="result_data"></div>  <script type="text/javascript"> $(function(){     setinterval(function(){     $.ajax({            type: "post",            url: get_data.php,            data: $("#idform").serialize(), // serializes form's elements.            success: function(data)            {                $('#result_data').show();            }          });     },1000);     }); </script>

your best practice go websockets. protocol overhead smaller http , play ping , pong server check new data.

with websockets client send message emitting data server receive , e.g. broadcast out other clients.

try head in socket.io did understand ;)


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