header('Content-Type: text/plain');
header('X-Test: header_f');
function header_f()
{
foreach (headers_list() as $header)
{
if (strpos($header, 'X-Powered-By:') !== false)
header_remove('X-Powered-By');
header_remove('X-Test');
}
}
header_register_callback('header_f');
echo "PHP Programming";
/*
run:
<html>
<head>
<body>
PHP Programming
</body>
</html>
*/