Connection handling problem

[quocbao]

Hi all , i have a problem with php connection handling

<?

set_time_limit(0);
ignore_user_abort(TRUE);

echo "Start<br>\n";

$i = 1;

while (connection_status() == 0 && connection_aborted() == FALSE)
{
	echo "Line $i<br>";
	flush();
	$i++;

sleep(1);
}

$f = fopen('test.txt' , 'wb');
fwrite($f , 'end');
fclose($f);
exit;

?>

The code is simple , i just want the script echo something while browser still connect and when the browser disconnect ( i press the stop button ) the script will open a file and write something to it .

But when i press the stop button T__T , or PHP stops immediately or it keeps running forever .

Can someone help me ! 🙁 😕