phpinfo() the right way!

This is how to secure any file that calls phpinfo() function. If the developer passes a get parameter to the script with a correct value he will see the server environment information, otherwise respond with a 404 error not found.

<?php
if(isset($_GET['phpinfo']) && $_GET['phpinfo'] == 'true'){
    phpinfo();
}else{
    header("HTTP/1.0 404 Not Found");
}