php 数据包

<?php
// 服务器端代码
$server = stream_socket_server("tcp://0.0.0.0:8080", $errno, $errorMessage);

if ($server === false) {
    throw new UnexpectedValueException("Could not bind to socket: $errorMessage");
}

for (;;) {
    $client = @stream_socket_accept($server);

    if ($client) {
        fwrite($client, 'Hello, client!' . PHP_EOL);
        fclose($client);
    }
}
?>

<?php
// 客户端代码
$client = stream_socket_client("tcp://127.0.0.1:8080", $errno, $errorMessage);

if ($client === false) {
    throw new UnexpectedValueException("Could not connect to server: $errorMessage");
}

echo fread($client, 1024);
fclose($client);
?>

<?php
// 处理 GET 请求
if ($_SERVER['REQUEST_METHOD'] === 'GET') {
    $param = $_GET['param'] ?? 'default';
    echo "GET request, param: $param";
}

// 处理 POST 请求
if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    $param = $_POST['param'] ?? 'default';
    echo "POST request, param: $param";
}
?>