How To Update Mysql With Php And Ajax Without Refreshing The Page

Ok here is my question I have MySQL with the following order: ids - radio - link - time - artist - title - disliked ids is the ID of the Media from page LISTEN.php I have random

Solution 1:

Ajax in jQuery works like this:

var myData=1;
$.ajax({
    type:'POST',//type of ajaxurl:'mypage.php',//where the request is goingdata:myData,//the variable you want to sendbeforeSend:function(xhr){//as a standard, I add this to validate stuffif(someThingWrong===true)xhr.abort//aborts xhttpRequest
   },
   success:function(result){
       //result is your result from the xhttpRequest.
   }
});

This will not refresh your page but send a 'POST' to the url specified. On your specified page you want to do whatever it is you want to do and say return a result. In my example I'll do something simple:

if($_POST['myData']===1)returnTrue;

That's the basics of an AJAX request using jQuery.

EDIT!

initiating an AJAX script: I'm only guess as I don't know your elements within your html nor your scripts what so ever! So you'll have to make adjustments!

$('button.dislike').click(function(){
    $.ajax({
        type:'POST',
        url:'disliked.php',
        data:{dislike:$(this).attr('id')},
        success:function(result){
            $(this).prev('span').append(result);
        }
    });
 });

PHP: don't use mysql, it's now been depreciated and is considered bad practise, I also don't know why're using sprintf on the query? :S

$DBH=new mysqli('location','username','password','database');
$get=$DBH->prepare("SELECT dislike FROM random WHERE ids=?");
$get->bind_param('i',$_POST['dislike']);
$get->execute();
$get->bind_result($count);
$get->close();
$update=$DBH->prepare('UPDATE random SET dislike=? WHERE ids=?');
$update->bind_param('ii',++$count,$_POST['dislike']);//if you get an error here, reverse the operator to $count++.$update->execute();
$update->close();
returnString$count++;

This will only work if there in your HTML there is a series of buttons with ID's matching those in your database. So

$get=$DBH->prepare('SELECT ids FROM random');
$get->execute();
$get->bind_result($ids);
while($get->fetch()){
    echo"<button class='dislike' id='".$ids."'>Dislike this?</button>";
}

Hope you get the general idea of how I'm managing your dislike button system XD lol