Ajax auto update when db updated

Question

I need my text to auto update when the mySQL database is updated. Could someone please help with this? I've looked a lot and no post says what I need, i'm new to ajax and don't know much about it. All I know is HTML, CSS, PHP and javascript.

Answer 1

First of all, you might wanna check jQuery. It'll be very simple if you know javascript, and it'll make your development a lot easier.

Then you need to check how an ajax call is implemented with jQuery. Again, really simple, here's an example.

test.php

$var1 = $_POST['key'];
$var2 = $_POST['key1'];

//Some code here

echo 'Test finished'; // This is returned to the ajax call

JAVASCRIPT

$.ajax({
         url:   '/test.php', 
        type:   'POST', /*Method, POST or GET depending on your needs*/
       async:  true, /*This makes the ajax call asyncronously or not*/
        data: {'key':value,'key2':value2},/*data to send*/
     success: function(result){  /*Return from PHP side*/

            /* result contains the data replied from the PHP script. */
            alert(result);

        }
});

If you want to replace some parts of your HTML you might wanna check functions like, append, after, before, prepend and html,etc. Also learn something about JSON, it's a data format. Really simple and yet magnificent

Hope this helps you! It looks like homework, but you'll ace it in no time, you'll see.