ajax 取值,该怎么处理

<?php<br />if($_POST) {<br />  print_r($_POST);<br />  exit;<br />}<br />?><br /><script src='http://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js'></script><br /><script><br />$(function() {<br />  $.ajax({<br />    type: "post",   <br />//   url: "ddd.php",   <br />    data: {"inserted":[{"productionName":"空压机","product":"科兴","productionType":"KX-11D","fenjieselect":"分解","proctionNO":"02"},{"productionName":"空压机","product":"科兴","productionType":"KX-12D","fenjieselect":"分解","proctionNO":"03"}],"updated":[],"deleted":[]},   <br />    datatype: "text",<br />    success:function(data){<br />      alert (data);<br />    }<br />  });<br />});<br /></script><br />