要实现实时聊天功能的屏蔽用户和过滤关键字,可以使用PHP的WebSocket来实现。下面是一个简单的示例:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Chat</title>
</head>
<body>
<input type="text" id="message" placeholder="Enter your message">
<button onclick="sendMessage()">Send</button>
<div id="chat"></div>
<script>
var socket = new WebSocket("ws://localhost:8080");
socket.onmessage = function(event) {
var message = event.data;
document.getElementById("chat").innerHTML += "<p>" + message + "</p>";
};
function sendMessage() {
var message = document.getElementById("message").value;
socket.send(message);
}
</script>
</body>
</html>
<?php
$host = 'localhost';
$port = 8080;
$server = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
socket_bind($server, $host, $port);
socket_listen($server);
$clients = array($server);
$blacklist = array("badword1", "badword2"); // 屏蔽关键字
while (true) {
$read = $clients;
$write = $except = null;
socket_select($read, $write, $except, null);
if (in_array($server, $read)) {
$client = socket_accept($server);
$clients[] = $client;
$key = array_search($server, $read);
unset($read[$key]);
}
foreach ($read as $client) {
$data = socket_read($client, 1024);
if ($data === false) {
$key = array_search($client, $clients);
unset($clients[$key]);
continue;
}
$data = trim($data);
if (!empty($data)) {
// 检查是否包含屏蔽关键字
$containsBadWord = false;
foreach ($blacklist as $badword) {
if (stripos($data, $badword) !== false) {
$containsBadWord = true;
break;
}
}
if (!$containsBadWord) {
// 发送消息给所有客户端
foreach ($clients as $sendClient) {
if ($sendClient !== $server && $sendClient !== $client) {
socket_write($sendClient, $data);
}
}
}
}
}
}
socket_close($server);
?>
上面的代码创建了一个简单的聊天服务器,客户端通过WebSocket与服务器建立连接,并发送消息。服务器接收消息后,检查是否包含屏蔽关键字,如果不包含,则将消息发送给所有客户端。
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