如何只获取php socket请求的结果？

<?php
// 创建Socket连接
$socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);

// 连接到目标服务器
$serverIP = '目标服务器IP';
$serverPort = '目标服务器端口';
socket_connect($socket, $serverIP, $serverPort);

// 发送请求数据
$request = "GET /path/to/resource HTTP/1.1\r\n";
$request .= "Host: example.com\r\n";
$request .= "Connection: close\r\n\r\n";
socket_write($socket, $request);

// 接收响应数据
$response = '';
while ($buffer = socket_read($socket, 1024)) {
    $response .= $buffer;
}

// 关闭Socket连接
socket_close($socket);

// 输出响应数据
echo $response;
?>