How do you handle the issue of dead links in your PHP projects?

Dead links in PHP projects can be handled by implementing a 404 error page that redirects users to a custom error page when they encounter a dead link. This can be achieved by using the header() function in PHP to set the HTTP response code to 404 Not Found and then including the custom error page content. 

<?php
if (!file_exists($file)) {
    header("HTTP/1.0 404 Not Found");
    include("404-error-page.php");
    exit;
}
?>

Keywords

error handling HTTP response codes link checking cURL file_get_contents

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