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Show the author your appreciation.
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Simply copy chat.php's contents where the chat page is required and customise.
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<!doctype html public "-//w3c//dtd html 3.2//en">
<html>
<head>
<title>chat</title>
<meta name="GENERATOR" content="Arachnophilia 4.0">
<meta name="FORMATTER" content="Arachnophilia 4.0">
</head>
<body bgcolor="#ffffff" text="#000000" link="#0000ff" vlink="#800080" alink="#ff0000">
<?
$person = str_replace ("\n"," ", $person);
$person = str_replace ("<", " ", $person);
$person = str_replace (">", " ", $person);
$person = stripslashes ($person);
?>
<form action="chat.php3" method="post">
Nickname: <input type="text" name="person" size="40" maxlength="80" value="<? echo $person; ?>"><br>
Your message: <textarea name="message" rows="3" cols="40"></textarea>
<input type="submit" value="Send/refresh">
</form>
<?
/* the $chat_file_ok is a txt file (or whatever else) I use for */
/* messages storage */
$chat_file_ok = "c:\\apache\\htdocs\\cart\\chat\\msg.txt";
/* $chat_lenght is the number of messages displayed */
$chat_lenght = 10;
/* $max_file_size is the maximum file size the msg.txt file can reach */
/* assuming that any chatter doesn't write a message longer than */
/* $max_single_msg_lenght (this case: 100,000 bytes = 100Kb) */
$max_single_msg_lenght = 100000;
$max_file_size = $chat_lenght * $max_single_msg_lenght;
/* check if file size is over maximum (set with $max_file_size ) */
$file_size= filesize($chat_file);
/* if file size is more than allowed then */
/* reads last $chat_lenght messages (last lines of msg.txt file) */
/* and stores them in $lines array */
/* then deletes the "old" msg.txt file and create a new msg.txt */
/* pushing the "old" messages stored in $lines array into the */
/* "new" msg.txt file using $msg_old. */
/* Note: this is done in order to avoid huge msg.txt file size. */
if ($file_size > $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 "<br>" 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<b>$person :</b> $msg<br>");
fclose($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] . "<hr>";
}
?>
</body>
</html> | |
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