php - how to send multiple ajax request and process the multiple request -


below ajax code perform subjected action implemented in manner of elaboration instead of simple one.

here implemented separate code each ajax request , response.

please see below code: 

 <html>  <head>   <script type="text/javascript" src="http://code.jquery.com/jquery-       1.7.1.min.js"></script>     <script type="text/javascript">         $(document).ready(function(){               $("#country").change(function(){                  var country=$("#country").val();                    $.ajax({                     type:"post",                     url:"getstate.php",                     data:'typeid='+country,                     success:function(data){                           $("#state").html(data);                      }                  });              });        });   </script>    <script type="text/javascript">         $(document).ready(function(){               $("#state").change(function(){                   var state=$("#state").val();                   $.ajax({                     type:"post",                     url:"getdistrict.php",                     data:'typeid='+state,                     success:function(data){                           $("#district").html(data);                     }                  });              });        });   </script>    <script type="text/javascript">         $(document).ready(function(){               $("#district").change(function(){                   var district=$("#district").val();                   $.ajax({                     type:"post",                     url:"getward.php",                     data:'typeid='+district,                     success:function(data){                           $("#ward").html(data);                     }                  });              });        });   </script>    <script type="text/javascript">         $(document).ready(function(){               $("#ward").change(function(){                   var ward=$("#ward").val();                   $.ajax({                     type:"post",                     url:"getslum.php",                     data:'typeid='+ward,                     success:function(data){                            $("#slum").html(data);                     }                  });              });        });   </script>    </head>  <body>     country : &nbsp;      <select name="country" id="country">       <option>-select country-</option>     <?php      error_reporting(e_all);      ini_set('display_errors', 1);     include "dbconfig.php";       $result=sqlsrv_query($conn,"select [countryid],[country]   toilet_country order country");     while($country=sqlsrv_fetch_array($result)){      echo "<option value = $country[countryid]>$country[country]</option>";      } ?>     </select> <br><br>       state :     &emsp;&nbsp;&nbsp;     <select name="state" id="state">         <option>-select state-</option>     </select> <br><br>       district : &nbsp;&nbsp;     <select name="district" id="district">         <option>-select district-</option>     </select> <br><br>      ward : &nbsp;&nbsp;     <select name="ward" id="ward">         <option>-select ward-</option>     </select> <br><br>      slum : &nbsp;&nbsp;     <select name="slum" id="slum">         <option>-select slum name-</option>     </select> <br><br>        </body>   </html>

and have written code in separate files retrieve country,state,district information database.

i unaware of these ajax call request , response looking advise how can make code portable.

thanks in advance.


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