PHP大道至简之swoole请求必应壁纸

港控/mmm° 2023-06-25 02:22 15阅读 0赞

### 目录大纲 ###

*  协程（Coroutine）
 *   *  Http2请求接口
     *  Http下载图片
 *  代码如下：

# 协程（Coroutine） #

## Http2请求接口 ##

**代码如下：**

$client = new Swoole\Coroutine\Http2\Client($domain, 443, true);
        //设置超时、ssl
        $client->set([
            'timeout' => -1,
            'ssl_host_name' => $domain,
        ]);
        //connect
        $client->connect();
        //实例化 request请求
        $req = new swoole_http2_request;
        //请求方式
        $req->method = 'GET';
        //请求地址
        $req->path = '/HPImageArchive.aspx?format=js&idx=0&n=1';
        //设置header头
        $req->headers =$head;
        //发送请求
        $client->send($req);
        //接收返回的response
        $response = $client->recv();
        //关闭连接
        $client->close();

## Http下载图片 ##

**代码如下：**

$cli = new \Swoole\Coroutine\Http\Client($domain, 443, true);
        //长连接
        $cli->set(['timeout' => -1]);
        //设置header头部
        $cli->setHeaders($head);
        //下载图片
        $cli->download($imageUrl, './wallpaper/'.$imageTile.date('Y-m-d').'.jpg',0);

# 代码如下： #

> swoole请求需要调用自身的http、http2完成。可以省去封装curl，并且效率更高。

//协程
    go(function(){ 
        //请求域名
        $domain = 'cn.bing.com';
        //header信息
        $head = [
            'host'=>$domain,
            'accept-encoding'=>'gzip, deflate',
            'accept-language'=>'zh-CN,zh;q=0.9,en;q=0.8,en-GB;q=0.7,en-US;q=0.6',
            'accept'=>'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9',
            'user-agent'=>'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.88 Safari/537.36 Edg/79.0.309.54',
        ];
        //请求服务器
        $client = new Swoole\Coroutine\Http2\Client($domain, 443, true);
        //设置超时、ssl
        $client->set([
            'timeout' => -1,
            'ssl_host_name' => $domain,
        ]);
        //connect
        $client->connect();
        //实例化 request请求
        $req = new swoole_http2_request;
        //请求方式
        $req->method = 'GET';
        //请求地址
        $req->path = '/HPImageArchive.aspx?format=js&idx=0&n=1';
        //设置header头
        $req->headers =$head;
        //发送请求
        $client->send($req);
        //接收返回的response
        $response = $client->recv();
        //关闭连接
        $client->close();
        //decode
        $image = json_decode($response->data,true);
        //壁纸
        $imageUrl = substr($image['images'][0]['url'],0,-7);
        $imageTile = substr($image['images'][0]['copyright'],0,stripos($image['images'][0]['copyright'],'('));
        //download image
        $cli = new \Swoole\Coroutine\Http\Client($domain, 443, true);
        //长连接
        $cli->set(['timeout' => -1]);
        //设置header头部
        $cli->setHeaders($head);
        //下载图片
        $cli->download($imageUrl, './wallpaper/'.$imageTile.date('Y-m-d').'.jpg',0);
    
    });