I am trying to start a session in PHP in order to store data about a user ID (which will be used in mySQL DB).
However when I start the session I get the following errors:
Warning: session_start(): Cannot send session cookie - headers already sent by (output started at /Applications/MAMP/blah) in /Applications/MAMP/blah on line 38
Warning: session_start(): Cannot send session cache limiter - headers already sent (output started at /Applications/MAMP/blah) in /Applications/MAMP/blah on line 38
I understand that the error is saying it cannot start the session as the page is already submitted, or "header already sent" however I am very confused because the line it is referencing, line 38, IS the line that starts the session:
Line 38: session_start();
So how can it say the headers are already sent by this line and that's the error?
Here is a shortened down section of my code. To note, there is portion of the HTML that is loaded in via AJAX using jQuery, could that be it?
<!DOCTYPE html>
<html>
<head>
<title>Title</title>
</head>
<body>
<div class="wrapper">
<div id="quiz-section">
// This part is where the HTML content loads via AJAX
</div>
</div>
<!-- Below PHP looks at the referral i.e how the user landed on this page -->
<?php
session_start();
require 'connect.php';
if (!mysqli_query($con,"INSERT INTO entries (referral) VALUES ('$ref')")){
echo("Error description: " . mysqli_error($con));
return false;
}
$_SESSION["sessionID"] = mysqli_insert_id($con);
mysqli_close($con);
?>
</body>
<script>
// some jQuery here to load in the HTML content to the AJAX pane
</script>
</html>
