".$_SESSION['tag']." ".$_SESSION['username'].': '.$_POST['chat']."
"; fwrite($chat,$data); fclose($chat); $chat = fopen("chatdata.txt", "r"); echo fread($chat,filesize("chatdata.txt")); fclose($chat); } else if(isset($_POST['ajaxget']) && $_POST['ajaxget']==true){ // Code to send chat history to the user $chat = fopen("chatdata.txt", "r"); echo fread($chat,filesize("chatdata.txt")); fclose($chat); } else if(isset($_POST['ajaxclear']) && $_POST['ajaxclear']==true){ // Code to clear chat history $chat = fopen("chatdata.txt", "w"); $data="".$_SESSION['username'].' cleared chat
'; fwrite($chat,$data); fclose($chat); }