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PHP, AJAX guestbook

Posted on 2009-03-30
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Last Modified: 2013-06-10
Hi, does anyone know from where I can start to build a PHP guestbook with AJAX effects?

I do know how to store data in a DB but never tried storing in an XML file.

Thanks.
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Question by:Rassac
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Mahdii7 earned 500 total points
ID: 24023767
AJAX doesn't require storage in XML files, the "XML" just has to do with the request structure. You can store the guestbook values any way you like.

For simple AJAX commands, I suggest jQuery's AJAX library: http://www.jquery.com
You'll basically build the guestbook just as you normally would, but build a series of PHP files to send a request to. They will return information about the request. For example:
// The JS
function add_to_book(){
$.ajax({
 url:"objects/php_guestbook_requests.php",
 type: "POST",
 data: "name="+$("#name").val()+"&time=today",
 success: function(html){
  $("#the_div").html(html);
 }
});
}
 
// the HTML
<input name="name" type="text" /> (Name goes here)<br />
<div id="the_div"></div>
<button onclick="add_to_book()">Click to add</button>
 
// The PHP
 
if (isset($_POST['name'])){
 $add_to_db = your_db_add_function($_POST['name'], $_POST['time']);
 if ($add_to_db){
  echo "Great, welcome to our guestbook";
 }else{
  echo "error";
 }
}
 
// When a user puts a name in, and hits the button, the user is added to the book and "Great, welcome to our guestbook" is output to the div. All in AJAX.. Let me know if this doesn't make sense.

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by:shobinsun
ID: 24026546
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