", " ", $person);
$person = stripslashes ($person);
?>
$max_file_size) {
/* reads file and stores each line $lines' array elements */
$lines = file($chat_file_ok);
/*get number of lines */
$a = count($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);
}
/* the following is because every message has to be */
/* placed into one single line in the msg.txt file. */
/* You can render \n (new lines) with "
" html tag anyway. */
$msg = str_replace ("\n"," ", $message);
/* if the user writes something... */
/* the new message is appended to the msg.txt file */
/* REMEMBER: the message is appended, hence, if */
/* you want the last message to be displayed as the */
/* first one, you have to */
/* 1. store the lines (messages) into the array */
/* 2. read the array in reverse order */
/* 3. post the messages in the output file (the chat) */
/* I added these three lines in order to avoid buggy html code and slashes */
$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, "\n$person : $msg
");
fclose($fp);
}
$lines = file($chat_file_ok);
$a = count($lines);
$u = $a - $chat_lenght;
/* reads the array in reverse order and outputs to chat */
for($i = $a; $i >= $u ;$i--){
echo $lines[$i] . "
";
}
?>