How can PHP beginners avoid common mistakes when using cookies for page redirection?

Common mistakes when using cookies for page redirection include not setting the cookie before any output is sent to the browser and not checking if the cookie is set before redirecting. To avoid these mistakes, make sure to set the cookie before any HTML or output, and check if the cookie is set before performing the redirection. 

<?php
// Set the cookie before any output
setcookie('redirect_cookie', 'true', time() + 3600);

// Check if the cookie is set before redirecting
if(isset($_COOKIE['redirect_cookie'])) {
    header('Location: new_page.php');
    exit;
}
?>

Keywords

PHP cookies page redirection beginners mistakes

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