PHP实现chatGPT流式输出代码，OpenAI对接，支持GPT3.5GPT4

 源码下载地址：https://gitee/haoyachengge/chatgpt-speed.git

        header('Content-Type: text/event-stream');
      	header('Cache-Control: no-cache');
      	header('Connection: keep-alive');
      	header('X-Accel-Buffering: no');
      	
      	$apiKey = config("open.apiKey");
      	$apiUrl = config("open.apiHost").'/v1/chat/completions';

        //提问数据
        $message = $request->param('message')??'hello!';
        //分组
        $group_id = $request->param('group_id');
        //客户端ip
        $ip = $request->ip();

        // 连续对话需要带着上一个问题请求接口
        $lastMsg = Db::table('ai_chat_msgs')->where([
            ['ip', '=', $ip],
            ['group_id',