What is the difference between using header() and meta refresh for automatic redirection in PHP?

When redirecting a user to a different page in PHP, you can use either the header() function or the meta refresh method. The main difference between the two is that header() sends an HTTP header to the browser, while meta refresh inserts an HTML meta tag in the page's header. Using header() is generally preferred as it is more efficient and reliable, while meta refresh can cause issues with browser compatibility and SEO.

// Using header() for automatic redirection
header("Location: newpage.php");
exit;