how to see why my php code gets error code example

Example 1: show php errors

ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);
error_reporting(E_ALL);

Example 2: How do I get PHP errors to display

ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);
error_reporting(E_ALL);