What is the use of swoole client?

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Client provides the encapsulation code of the TCP/UDP socket client, which only requires new Swoole\ Client is enough.

In addition to the ordinary synchronous blocking select method, Client also supports asynchronous non-blocking callbacks.(Recommended learning:swoole video tutorial)

Synchronously blocking the client, sample code

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

Asynchronous Non-blocking client, sample code

$client = new Swoole\Client(SWOOLE_SOCK_TCP, SWOOLE_SOCK_ASYNC); $client->on("connect", function(swoole_client $cli) { $cli->send("GET / HTTP/1.1\r\n\r\n"); }); $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 "error\n"; }); $client->on("close", function(swoole_client $cli){ echo "Connection close\n"; }); $client->connect('127.0.0.1', 9501);

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