function safeRedirect($url) {
if(headers_sent()) {
echo “Please go to “.$url.”“;
echo “\n”;
echo “window.location.href=’”.$url.”‘;\n”;
echo “\n”;
echo “\n”;
echo “\n”;
}
else{
header(‘Location: ‘.$url);
}

exit;
}

Don’t forget the closing ‘exit’, otherwise the script will continue executing.