php server sent events

1header('Content-Type: text/event-stream');
2header('Cache-Control: no-cache');
3
4while (true) {
5  	$data = [
6    	'name' => 'Rasmus Lerdorf'
7    ]
8
9  	echo "event: sse\n";
10  	echo "data: " . json_encode($data) . "\n\n";
11    echo str_pad('', 4096) . "\n";
12      
13	ob_flush();
14  	flush();
15  	sleep(1);
16
17  	if (connection_aborted()) {
18    	break;
19  	}
20}
21ob_end_flush();