I’m create live editable table, it changed data in table but it doesn’t update data in database. can anybody help me, to see where my mistakes ?
Update.php

$  query = "UPDATE admin SET '".$  _POST["Nama Depan"]."' = '".$  _POST["value"]."' WHERE id = '".$  _POST["pk"]."'"; 

index.php

  </body>   </html>     <script type="text/javascript" language="javascript" >   $  (document).ready(function(){  function fetch_employee_data()  {      $  .ajax({         url:"fetch.php",         method:"POST",         dataType:"json",         success:function(data)          {             for(var count=0; count<data.length; count++)               {                var html_data = '<tr><td>'+data[count].id+'</td>';                 html_data += '<td data-name="Nama Depan" class="nm_depan" data-type="text" data-pk="'+data[count].nm_depan+'">'+data[count].nm_depan+'</td>';                 html_data += '<td data-name="Nama Belakang" class="nm_belakang" data-type="text" data-pk="'+data[count].nm_belakang+'">'+data[count].nm_belakang+'</td>';                 html_data += '<td data-name="Email" class="email" data-type="text" data-pk="'+data[count].id+'">'+data[count].email+'</td>';                 html_data += '<td data-name="Gender" class="gender" data-type="select" data-pk="'+data[count].gender+'">'+data[count].gender+'</td>';                  html_data += '<td data-name="Password" class="password" data-type="text" data-pk="'+data[count].password+'">'+data[count].password+'</td>';                 html_data += '<td data-name="CV" class="cv" data-type="text" data-pk="'+data[count].cv+'">'+data[count].cv+'</td>';                 html_data += '<td data-name="Tanggal Upload" class="tgl_upload" data-type="text" data-pk="'+data[count].id+'">'+data[count].tgl_upload+'</td>';                 html_data += '<td data-name="Jabatan" class="jabatan" data-type="select" data-pk="'+data[count].jabatan+'">'+data[count].jabatan+'</td>';    $  ('#admin_data').append(html_data); }          }})}  fetch_employee_data();       $  ('#admin_data').editable({         container: 'body',         selector: 'td.nm_depan',         url: "update.php",         title: 'Nama Depan',          type: "POST",         //dataType: 'json',          validate: function(value){          if($  .trim(value) == '')          {          return 'This field is required';          }          }           });            $  ('#admin_data').editable({          container: 'body',          selector: 'td.nm_belakang',            url: "update.php",          title: 'Nama Belakang',          type: "POST",          //dataType: 'json',          validate: function(value){          if($  .trim(value) == '')           {          return 'This field is required';          }          }          }); 

Thanks