[PHP]
<?
header("Expires: ".gmdate("D, d M Y H:i:s")."GMT");
header("Cache-Control: no-cache, must-revalidate");
header("Pragma: no-cache");
?>


<?

$person = str_replace ("\n"," ", $person);
$person = str_replace ("<", " ", $person);
$person = str_replace (">", " ", $person);
$person = stripslashes ($person);

?>

&output=

<?					

$chat_file_ok = "msg.txt";

$chat_lenght = 13;

$max_single_msg_lenght = 100000;
$max_file_size = $chat_lenght * $max_single_msg_lenght;

$file_size= filesize($chat_file);
		
if ($file_size > $max_file_size) {

$lines = file($chat_file_ok);								*/

$a = count($lines);

$u = $a - $chat_lenght;
for($i = $a; $i >= $u ;$i--){
		$msg_old =  $lines[$i] . $msg_old;
	}
$deleted = unlink($chat_file_ok);
$fp = fopen($chat_file_ok, "a+");
$fw = fwrite($fp, $msg_old);
fclose($fp);
}

$msg = str_replace ("\n"," ", $message);
$msg = str_replace ("\n"," ", $message);
$msg = str_replace ("<", " ", $msg);
$msg = str_replace (">", " ", $msg);
$msg = stripslashes ($msg);


if ($msg != ""){
$fp = fopen($chat_file_ok, "a+");
$fw = fwrite($fp, "$person : $msg\n");
fclose($fp);}

$lines = file($chat_file_ok);
$a = count($lines);

$u = $a - $chat_lenght;

for($i = $a; $i >= $u ;$i--){
		echo $lines[$i];
	}


?>
[PHP]