HTML - Change Update page contents without refreshing reloading the page

Question

I get the data from DB and display it in a div... what I want to do is when I click a link it should change the content of the div

one option is to pass parameter through URL to itself and reload the page...

I need to do it without reloading\refreshing...

<?php   
    $id   = '1';

    function recp( $rId ) {
        $id   = $rId;
    }
?>

<a href="#" onClick="<?php recp('1') ?>" > One   </a>
<a href="#" onClick="<?php recp('2') ?>" > Two   </a>
<a href="#" onClick="<?php recp('3') ?>" > Three </a>

<div id='myStyle'>
<?php
    require ('myConnect.php');     
    $results = mysql_query("SELECT para FROM content WHERE  para_ID='$id'");

    if( mysql_num_rows($results) > 0 ) {
        $row = mysql_fetch_array( $results );
        echo $row['para'];
    }
?>
</div>

Answer 1

Hii kartik,

onclick handlers run on the client side, in the browser, so you cannot call a PHP function directly. Instead, you need to add a JavaScript function that (as you mentioned) uses AJAX to call a PHP script and retrieve the data. Using jQuery, you can do something like this:

<script type="text/javascript">
function recp(id) {
  $('#myStyle').load('data.php?id=' + id);
}
</script>

<a href="#" onClick="recp('1')" > One   </a>
<a href="#" onClick="recp('2')" > Two   </a>
<a href="#" onClick="recp('3')" > Three </a>

<div id='myStyle'>
</div>

Then you put your PHP code into a separate file: (I've called it data.php in the above example)

<?php
  require ('myConnect.php');     
  $id = $_GET['id'];
  $results = mysql_query("SELECT para FROM content WHERE  para_ID='$id'");   
  if( mysql_num_rows($results) > 0 )
  {
   $row = mysql_fetch_array( $results );
   echo $row['para'];
  }
?>

Answer 2

AJAX is about updating parts of a web page, without reloading the whole page.

Answer 3

pushState() #

The pushState() method let's you update the URL and create a new item in the browser history without reloading the page. Because the history is updated, this new URL can be changed with the browser's forward and backward buttons as well.

Change content and URL without refreshing page using ajax – jquery – php

1. Part 1: jQuery Code (It is used to change the url of the website) ...
2. Part 2: Ajax Code (It is used to fetch data of other pages) ...
3. (1) Create “header. ...
4. (2) Create “footer.php” file then copy below code and paste it. ...
5. (3) Create “index. ...
6. (4) Create “home.