我需要3秒的间隔来执行每个mysql_query

Question

I'm doing a simple chat and everything is working well, but everybody can flood the chat sending how many messages they want to...

PHP:

<div id="chat_panel"></div>
<br />
<table border="0" cellspacing="0" cellpadding="0">
<tr>
<td><input type="text" autocomplete="off" maxlength="50" placeholder="Type your message..." id="message" size="87%" checked="yes"></td>
<td><input type="button" id="message" onClick="sendMessage()" value="Send"></td>
</tr>
</table>

JAVASCRIPT:

function sendMessage() {
var message = $('#message').val();
$.post('postMessage.php', { message: message } , function() { } );
}

postMessage.PHP:

session_start();
include ("chats/connect.php");
$timname = $_SESSION['username'];
if (isset($_POST['message'])) {
mysql_query("INSERT INTO chat VALUES ('', '".$timname."', '".$_POST['message']."', '".time()."', NOW(), '');");
}

I need to set a interval to send each message like 3 seconds... Any information will be helpful!

Answer 1

Try Jquery to refresh specific page. Try something like below code

setup.js

var autorefresh=setInterval(
function()
{
    $("query.php").load('query.php');   
    e.preventDefault();
},3000);

query.php

session_start();
include ("chats/connect.php");
$timname = $_SESSION['username'];
if (isset($_POST['message'])) {
mysql_query("INSERT INTO chat VALUES ('', '".$timname."', '".$_POST['message']."', '".time()."', NOW(), '');");
}

Here 3000 in setup.js is time in miliseconds you want to refresh.