Chating ONLINE via LAN
Langsung aja ke TKP
langkah pertama buat databasenya dulu copas aja langsung
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CREATE TABLE `drzchat` (
`nomor` int(3) NOT NULL auto_increment,
`nama` varchar(20) NOT NULL,
`pesan` varchar(200) NOT NULL,
`waktu` varchar(10) NOT NULL,
PRIMARY KEY (`nomor`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=1 ;
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Jika sudah kita buat databasenya kita bikin INDEX nya
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<html>
<head>
<title>
Chating LAN
</title>
<script>
var ajaxku = buatAjax();
var tnama = 0;
var pesanakhir = 0;
var timer;
function taruhNama(){
if(tnama==0){
document.getElementById("nama").disabled = "true";
tnama = 1;
}else{
document.getElementById("nama").disabled = "";
tnama = 0;
}
ambilPesan();
}
function buatAjax(){
if(window.XMLHttpRequest){
return new XMLHttpRequest();
}else if(window.ActiveXObject){
return new ActiveXObject("Microsoft.XMLHTTP");
}
}
function ambilPesan(){
namaku = document.getElementById("nama").value
if(ajaxku.readyState == 4 || ajaxku.readyState == 0){
ajaxku.open("GET","ambilchat.php?akhir="+pesanakhir+"&nama="+namaku+"&sid="+Math.random(),true);
ajaxku.onreadystatechange = aturAmbilPesan;
ajaxku.send(null);
}
}
function aturAmbilPesan(){
if(ajaxku.readyState == 4){
var chat_div = document.getElementById("div_chat");
var data = eval("("+ajaxku.responseText+")");
for(i=0;i<data.messages.pesan.length;i++){
chat_div.innerHTML += "<font color=red>"+data.messages.pesan[i].nama+"</font> ";
chat_div.innerHTML += "<font size=1>("+data.messages.pesan[i].waktu+")</font> ";
chat_div.innerHTML += " : "+data.messages.pesan[i].teks+"<br>";
chat_div.scrollTop = chat_div.scrollHeight;
pesanakhir = data.messages.pesan[i].id;
}
}
timer = setTimeout("ambilPesan()",1000);
}
function kirimPesan(){
pesannya = document.getElementById("pesan").value
namaku = document.getElementById("nama").value
if(pesannya != "" && document.getElementById("nama").value !=""){
ajaxku.open("GET","ambilchat.php?akhir="+pesanakhir+"&nama="+namaku+"&pesan="+pesannya+"&sid="+Math.random(),true);
ajaxku.onreadystatechange = aturAmbilPesan;
ajaxku.send(null);
document.getElementById("pesan").value = "";
}else{
alert("Nama atau pesan masih kosong");
}
}
function aturKirimPesan(){
clearInterval(timer);
ambilPesan();
}
function blockSubmit() {
kirimPesan();
return false;
}
</script>
</head>
<body>
Nama : <input type=text name=nama id=nama>
<input type=button value=login id=tmbl_login onclick=taruhNama()><p>
<div id="div_chat" style="height: 300px; width: 500px; overflow: auto; background-color: lightyellow; border: 1px solid #555555;">
</div>
<form onSubmit="return blockSubmit();">
Pesan : <input type=text name=pesan id=pesan size=50>
<input type=button value="kirim" onClick="kirimPesan()">
</form>
</body>
</html>
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Simpan dengan
index.htmlselanjutnya bikin untuk memproses data nya
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<?php
//untuk koneksi ke database
mysql_connect("localhost","root","password");
mysql_select_db("nama_databasenya");
$nama = $_GET['nama'];
$pesan = $_GET['pesan'];
$waktu = date("H:i");
$akhir = $_GET['akhir'];
$json = '{"messages": {';
if($akhir==0){
$nomor = mysql_query("select nomor from drzchat order by nomor desc limit 1");
$n = mysql_fetch_array($nomor);
$no = $n['nomor'] + 1;
$json .= '"pesan":[ {';
$json .= '"id":"'.$no.'",
"nama":"Admin",
"teks":"Selamat datang di chatting room",
"waktu":"'.$waktu.'"
}]';
$masuk = mysql_query("insert into drzchat values(null,'Admin','$nama bergabung dalam chat','$waktu')");
}else{
if($pesan){
$masuk = mysql_query("insert into drzchat values(null,'$nama','$pesan','$waktu')");
}
$query = mysql_query("select * from drzchat where nomor > $akhir");
$json .= '"pesan":[ ';
while($x = mysql_fetch_array($query)){
$json .= '{';
$json .= '"id":"'.$x['nomor'].'",
"nama":"'.htmlspecialchars($x['nama']).'",
"teks":"'.htmlspecialchars($x['pesan']).'",
"waktu":"'.$x['waktu'].'"
},';
}
$json = substr($json,0,strlen($json)-1);
$json .= ']';
}
$json .= '}}';
echo $json;
?>
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Simpan dengan nama ambilchat.php
Selamat Mencoba
