JS Fullcalendar更新数据库

Question

I'm using full calendar js and I am able to connect the events created into the database using phpmyadmin however it does not update the database. Here is the codes:

<link href='css/fullcalendar.css' rel='stylesheet' />
<script src='js/moment.min.js'></script>
<script src='js/jquery.min.js'></script>
<script src='js/fullcalendar.min.js'></script>
<script>

 $(document).ready(function() {
  var date = new Date();
  var d = date.getDate();
  var m = date.getMonth();
  var y = date.getFullYear();

  var calendar = $('#calendar').fullCalendar({
   editable: true,
   header: {
    left: 'prev,next today',
    center: 'title',
    right: 'month,agendaWeek,agendaDay'
   },

   events: "calendarevents.php",

   // Convert the allDay from string to boolean
   eventRender: function(event, element, view) {
    if (event.allDay === 'true') {
     event.allDay = true;
    } else {
     event.allDay = false;
    }
   },
   selectable: true,
   selectHelper: true,
   select: function(start, end, allDay) {
   var title = prompt('Event Title:');
   var url = prompt('Type Event url, if exits:');
   if (title) {
       var start = $.fullCalendar.moment(start).format();
         var end = $.fullCalendar.moment(end).format();
   $.ajax({
   url: 'calendaraddevents.php',
   data: 'title='+ title+'&start='+ start +'&end='+ end +'&url='+ url ,
   type: "POST",
   success: function(json) {
   alert('Added Successfully');
   }
   });
   calendar.fullCalendar('renderEvent',
   {
   title: title,
   start: start,
   end: end,
   allDay: allDay
   },
   true // make the event "stick"
   );
   }
   calendar.fullCalendar('unselect');
   },

   editable: true,
   eventDrop: function(event, delta) {
   var start = $.fullCalendar.moment(start).format();
   var end = $.fullCalendar.moment(end).format();
   $.ajax({
   url: 'calendarupdateevents.php',
   data: 'title=' + event.title + '&start='+ start +'&end=' + end + '&id=' + event.id ,
   type: "POST",
   success: function(json) {   
    alert("Updated Successfully");
   }
   });
   },
   eventResize: function(event) {
   var start = $.fullCalendar.moment(start).format();
   var end = $.fullCalendar.moment(end).format();
   $.ajax({
    url: 'calendarupdateevents.php',
    data: 'title=' + event.title + '&start=' + start + '&end=' + end + '&id=' + event.id ,
    type: "POST",
    success: function(json) {
     alert("Updated Successfully");
    }
   });

}

  });

 }); 
</script>

Here is the codes for calendarupdateevents.php

<?php
/* Values received via ajax */
$id = $_POST['id'];
$title = $_POST['title'];
$start = $_POST['start'];
$end = $_POST['end'];

// connection to the database
try {
    $bdd = new PDO('mysql:host=localhost;dbname=ththy', 'calendar', '1234');
} catch(Exception $e) {
    exit('Unable to connect to database.');
}
// update the records
$sql = "UPDATE evenement SET title=?, start=?, end=? WHERE id=?";
$q = $bdd->prepare($sql);
$q->execute();
?>

Answer 1

As halfer said, you aren't passing any parameters to your query. Try this :

<?php
/* Values received via ajax */
$values = array(
    'id' => int($_POST['id']),
    'title' => htmlentities($_POST['title'], ENT_QUOTES | ENT_IGNORE, "UTF-8"),
    'start' => htmlentities($_POST['start'], ENT_QUOTES | ENT_IGNORE, "UTF-8"),
    'end' => htmlentities($_POST['end'], ENT_QUOTES | ENT_IGNORE, "UTF-8")
);
// connection to the database
try {
    $bdd = new PDO('mysql:host=localhost;dbname=ththy', 'calendar', '1234');
} catch(Exception $e) {
    exit('Unable to connect to database.');
}
// update the records
$sql = "UPDATE evenement SET title=?, start=?, end=? WHERE id=?";
$q = $bdd->prepare($sql);
$q->execute($values);
?>