Reload MySQL data inside a DIV using Ajax

Question

I need to make a moderate system like the one in fmylife.com. Basically the problem I have is loading the MySQL query using Ajax (without page refreshing) in to a div. MySQL

Answer 1

in post.php:

$sql = mysql_query("SELECT * FROM posts WHERE active ='0' LIMIT 1") or die (mysql_error());
$row = mysql_fetch_array($sql);
echo $row['sitepost'];

JS:

<script type="text/javascript">
$(document).ready(function(){
   $("#yes").click(function(){
      $(".post-body").eq(0).load("post.php");
   })
})
</script>

HTML:

<div id="yes">YES</div>
<div class="post-body"></div>

Answer 2

@mgraph is close but if you want to do this on a button click

in post.php:

//$UserOption will be Yes/No for button clicks or empty string for first load of the page

$UserOption = $_REQUEST['UserClicked'];

//Id will be set if a vote has been clicked or empty string if it's the first load
$Id = $_REQUEST['Id'];

//(Do something with $UserOption)

$sql = mysql_query("SELECT * FROM posts WHERE active ='0' LIMIT 1") or die (mysql_error());
$row = mysql_fetch_array($sql);
echo $row['sitepost'];

JS:

<script type="text/javascript">
$(document).ready(function(){
   update(null,null);
})

function update(Id, Vote) {
    $(".post-body").eq(0).load("post.php?UserClicked=" + Vote + "&Id=" + Id);
}
</script>

HTML:

<div class="post-body"></div>


<button type="button" onclick="update(1, 'Yes');">Yes</button>
<button type="button" onclick="update(1, 'No');">No</button>



<button type="button" onclick="update(2, 'Yes');">Yes</button>
<button type="button" onclick="update(2, 'No');">No</button>

Alternate HTML/JS

<script type="text/javascript">
$(document).ready(function(){
    $("#yes").click(function(){
        update('Yes');
    })
    $("#no").click(function(){
        update('No');
    })
    update();
})

function update(Vote) {
    $(".post-body").eq(0).load("post.php?UserClicked=" + Vote);
}
</script>

<div class="post-body"></div>
<button id="yes" type="button">Yes</button>
<button id="no" type="button">No</button>

Answer 3

You can add $("html, body").animate({ scrollTop: 0 }, 500); . Thereby, when you clicked YES button, scroll move up to top. It looks nice.