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

When redirecting in PHP, using the header() function is the preferred method as it sends an HTTP header to the browser to redirect to a new page. This method is more efficient and reliable compared to using the meta refresh tag in HTML, which relies on the browser to automatically redirect after a specified time. Additionally, using header() allows for more control over the redirect process.

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