TCP客户端异步连接
最后更新于：2022-04-02 06:37:25
# TCP客户端异步连接
通过使用on方法注册异步回调函数。多个swoole\_client可以嵌套回调。异步模式仅可用于cli模式，如在swoole\_process或swoole\_server中。
示例：
~~~
on("connect", function($cli) {
echo "connected\n";
$cli->send("hello world\n");
});
$client->on("receive", function($cli, $data) {
if(empty($data)){
$cli->close();
echo "closed\n";
} else {
echo "received: $data\n";
sleep(1);
$cli->send("hello\n");
}
});
$client->on("error", function($cli){
exit("error\n");
});
$client->on("close", function($cli){
echo "connection is closed\n";
});
$client->connect('127.0.0.1', 9501, 0.5);
~~~
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