PHP - chatti ongelma

Jotainidist? kirjoitti:

Aattelin kattoo jos täältä löytyis joku hieman minua fiksumpi myyrä.

Chatti moottoria olen rakennellut tässä hiukkasen aikaa, kellään ideaa miten sais chat.txt:stä kaivettua muiden lähettämät viestit että näkyisi muillekkin.

eli koodia:

chat.js

var instanse = false;
var state;
var mes;
var file;

function Chat () {
this.update = updateChat;
this.send = sendChat;
this.getState = getStateOfChat;
}

//gets the state of the chat
function getStateOfChat(){
if(!instanse){
instanse = true;
$.ajax({
type: "POST",
url: "process.php",
data: {
'function': 'getState',
'file': file
},
dataType: "json",

success: function(data){
state = data.state;
instanse = false;
},
});
}
}

//Updates the chat
function updateChat(){
if(!instanse){
instanse = true;
$.ajax({
type: "POST",
url: "process.php",
data: {
'function': 'update',
'state': state,
'file': file
},
dataType: "json",
success: function(data){
if(data.text){
for (var i = 0; i < data.text.length; i ) {
$('#chat-area').append($("" data.text[i] ""));
}
}
document.getElementById('chat-area').scrollTop = document.getElementById('chat-area').scrollHeight;
instanse = false;
state = data.state;
},
});
}
else {
setTimeout(updateChat, 1500);
}
}

//send the message
function sendChat(message, nickname)
{
updateChat();
$.ajax({
type: "POST",
url: "process.php",
data: {
'function': 'send',
'message': message,
'nickname': nickname,
'file': file
},
dataType: "json",
success: function(data){
updateChat();
},
});
}

index.php





// ask user for name with popup prompt
var name = prompt("Your name:", "anon");

// default name is 'Guest'
if (!name || name === ' ') {
name = "anon";
}

// strip tags
name = name.replace(/(] )>)/ig,"");

// display name on page
$("#name-area").html("You are: " name "");

// kick off chat
var chat = new Chat();
$(function() {

chat.getState();

// watch textarea for key presses
$("#sendie").keydown(function(event) {

var key = event.which;

//all keys including return.
if (key >= 33) {

var maxLength = $(this).attr("maxlength");
var length = this.value.length;

// don't allow new content if length is maxed out
if (length >= maxLength) {
event.preventDefault();
}
}
});
// watch textarea for release of key press
$('#sendie').keyup(function(e) {

if (e.keyCode == 13) {

var text = $(this).val();
var maxLength = $(this).attr("maxlength");
var length = text.length;

// send
if (length

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