// Handle form submission
if ($_SERVER["REQUEST_METHOD"] == "POST") {
if (isset($_POST["message"]) && !empty($_POST["message"])) {
$message = $_POST["message"];
$time = date("H:i:s");
// Append message to chat log file
file_put_contents("chat_log.txt", "$time - {$_SESSION['username']}: $message\n", FILE_APPEND);
}
}
?>
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