Run PHP code on user click and pass variables

Question

So I am using the following answer I've gotten from another question,

<script type="text/javascript" src="jquery.min.js"></script>
<script type="text/javascript">
function doSomething() {
    $.get("somepage.php");
    return false;
}
</script>

<a href="#" onclick="doSomething();">Click Me!</a>

I'm just wondering how I can pass a couple more variables from the page this code is on to the somepage.php (the page that I am calling).

Also, once that .php page is ran, how can I then use some of the data that it generates back on the page that I ran this code from (basically to update the user that it has been ran by updating a field possibly).

It'd be great if someone could at least tell me how I can pass php variables over to the other .php page.

By the way, I know there is a similar question here: Run PHP code when user clicks link and pass variables

That also has an answer, but I am trying to use the code that I provided, since it's very simplistic.

Answer 1

You want an ajax post call:

//Inside your function 
var someVar = <?php echo $variable ?>;
var anotherVar = <?php echo $newVar ?>;

$.post("somepage.php", {firstParam : someVar, secondParam : anotherVar}, function(data) {
    //this is your response data from serv
    console.log(data);
});

You ccan access that data you sent then:

$paramOne = $_POST['firstParam'];
$paramTwo = $_POST['secondParam'];
echo "some response";

And your data from above will be "some response". In a nutshell;

Answer 2

You can pass variables to php page using a POST.

here a example:

Pass data from jQuery to PHP for an ajax post