What could be causing the session not to be registered in the PHP code provided?

The issue could be that the session_start() function is not being called before trying to access or set session variables. To solve this, make sure to call session_start() at the beginning of the PHP script to initialize the session. 

<?php
session_start();

// Check if the session variable is set
if(isset($_SESSION['views'])) {
    $_SESSION['views']++;
} else {
    $_SESSION['views'] = 1;
}

echo "Views: " . $_SESSION['views'];
?>

Keywords

session PHP code registration error

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