Tuesday, 6 August 2013

How to retrieve value from PHP script within Ajax

How to retrieve value from PHP script within Ajax

So at the top of my HTML page, before the html tag, I've included this
into the page through a include statement:
login.php:
if($_SESSION['user'] == ""){
header("Location: index.php");
die;
} else {
$user = $_SESSION['user']; // student id
$results = mysqli_query($conn, "SELECT * FROM `user` WHERE
`studentid`='$user' LIMIT 1");
$current = mysqli_fetch_array($results);
}
?>
Later on in the page, within HTML tags, I call a page through Ajax and
within that page, I write `echo $user;', however nothing gets printed out.
How do I retrieve the values from my earlier php script here?
Here's the layout:
<?php include('login.php'); ?>
<html>
<head></head>
<body>
<?php //ajax portion of the page
echo $user; //prints nothing
?>
</body>
</html>

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