swoole客户端有什么用

client客户端

Client提供了TCP/UDP socket的客户端的封装代码，使用时仅需 new SwooleClient 即可。

除了普通的同步阻塞+select的使用方法外，Client还支持异步非阻塞回调。 （推荐学习： swoole视频教程）

同步阻塞客户端，示例代码

$client = new swoole_client(SWOOLE_SOCK_TCP);  if (!$client->connect('127.0.0.1', 9501, -1)) {     exit("connect failed. Error: {$client->errCode}n"); }  $client->send("hello worldn");  echo $client->recv();  $client->close();

异步非阻塞客户端，示例代码

$client = new SwooleClient(SWOOLE_SOCK_TCP, SWOOLE_SOCK_ASYNC); $client->on("connect", function(swoole_client $cli) {     $cli->send("GET / HTTP/1.1rnrn"); }); $client->on("receive", function(swoole_client $cli, $data){     echo "Receive: $data";     $cli->send(str_repeat('A', 100)."n");     sleep(1); }); $client->on("error", function(swoole_client $cli){     echo "errorn"; }); $client->on("close", function(swoole_client $cli){     echo "Connection closen"; }); $client->connect('127.0.0.1', 9501);