How does browser compatibility, like in the case of Opera 7, affect the handling of session variables in PHP?

Browser compatibility issues, like in the case of Opera 7, can affect the handling of session variables in PHP if the browser does not properly handle cookies. To ensure session variables work correctly across different browsers, you can use session_start() at the beginning of your PHP script to start a session and set session variables. Additionally, you can use session_regenerate_id() to regenerate the session ID to prevent session fixation attacks. 

<?php
session_start();
if (!isset($_SESSION['visited'])) {
    $_SESSION['visited'] = 1;
} else {
    $_SESSION['visited']++;
}

session_regenerate_id();
?>

Keywords

browser compatibility Opera 7 session variables PHP handling

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