This is an explanation of the video content.
 用技术延续对ACG的热爱
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推送数据到前端

client.html

<!DOCTYPE html>
<html>

<head>
    <title>Server-Sent Events Example</title>
</head>

<body>
    <h1>Server-Sent Events Example</h1>
    <div id="sse-data"></div>

    <script>
        // 创建一个 EventSource 对象,连接到服务器端的 SSE
        var eventSource = new EventSource('server.php');

        // 监听 message 事件,接收来自服务器端的数据
        eventSource.addEventListener('message', function (event) {
            // 在页面上展示接收到的数据
            document.getElementById('sse-data').innerHTML = event.data;
        });
    </script>
</body>

</html>

server.php

<?php
date_default_timezone_set("America/New_York");
header("Cache-Control: no-store");
header("Content-Type: text/event-stream");

$counter = rand(1, 10);
while (true) {
  // 每秒发送一个 "ping" 事件

  echo "event: ping\n";
  $curDate = date('Y-m-d\TH:i:s');
  echo 'data: {"time": "' . $curDate . '"}';
  echo "\n\n";

  // 在随机时间间隔发送一条简单消息

  $counter--;

  if (!$counter) {
    echo 'data: This is a message at time ' . $curDate . "\n\n";
    $counter = rand(1, 10);
  }

  // 刷新输出缓冲区

  if (ob_get_level() > 0) {
    ob_end_flush();
  }

  flush();

  // 如果客户端中断连接(关闭页面),则跳出循环

  if (connection_aborted()) break;

  sleep(1);
}

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