How can I troubleshoot and debug issues related to cookies not being set or accessed correctly in PHP?

To troubleshoot and debug issues related to cookies not being set or accessed correctly in PHP, you can check if cookies are being set with the `setcookie()` function, ensure that cookies are being accessed with the `$_COOKIE` superglobal, and verify that the cookie parameters (such as expiration time and path) are correct. Additionally, you can use browser developer tools to inspect the cookies being set and check for any errors in your PHP code. 

// Set a cookie
setcookie('cookie_name', 'cookie_value', time() + 3600, '/');

// Access the cookie
if(isset($_COOKIE['cookie_name'])) {
    $cookie_value = $_COOKIE['cookie_name'];
    echo "Cookie value: " . $cookie_value;
} else {
    echo "Cookie not set";
}

Keywords

cookies debugging troubleshooting PHP functions access control

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