swoole入门

我们来用swoole这个php扩展实现一个简单的客户端和服务器,并且让它们进行简单的交流
首先,我们先来实现客户端(命名为:client.php):

<?php
$client = new swoole_client(SWOOLE_SOCK_TCP);
if (!$client->connect('127.0.0.1', 9501, -1))
{
    exit("connect failed. Error: {$client->errCode}
");
}

fwrite(STDOUT, 'Enter the message you want to send, and you can enter the no to quit it '."
");
while(true) {
    fwrite(STDOUT, 'client: ');  
    $info = fgets(STDIN);
    if('no'."
" === $info) {
        break;
    }
    $client->send($info);
    $recive = $client->recv();
    echo 'server: '.$recive."
";
}
$client->close();

然后,再来实现一个简单的服务器(命名为:server.php):

<?php
$server = new swoole_server('127.0.0.1', 9501, SWOOLE_BASE, SWOOLE_SOCK_TCP);
$server->on('receive', function($server, $fd, $from_id, $data) {
    if('what is your name'."
" === $data) {
        $server->send($fd, 'My name is huanghantao');
    }
    elseif('where are you from'."
" === $data) {
        $server->send($fd, 'I am from China');
    }
    elseif('how old are you'."
" === $data) {
        $server->send($fd, 'I am 20');
    }
    else{
        $apiKey = "7e97323fbb5b4c56aetc7f1ff5231b20"; 
        $apiURL = "http://www.tuling123.com/openapi/api?key=KEY&info=INFO"; 
        // 设置报文头, 构建请求报文 
        header("Content-type: text/html; charset=utf-8"); 
        $reqInfo = $data; 
        $url = str_replace("INFO", $reqInfo, str_replace("KEY", $apiKey, $apiURL)); 

        $res = json_decode(file_get_contents($url), true);
        $server->send($fd, $res['text']);
    }
});

$server->start();

接下来,进入这两个文件所在的目录

 
1.PNG

然后再执行这server.php文件来启动服务器(注意: 一定要先启动服务器再来启动客户端,注:我是用的root,服务器和客户端需要开两个,一开始在一个命令行里试死活不行):
php server.php

 
2.PNG

此时,就开始监听环回地址127.0.0.1的9501端口
接着,我们执行client.php这个文件:
php client.php

 
3.PNG

这样,客户端和服务器就建立了一个TCP网络连接
现在,我们就可以在客户端和服务器进行通信了,现在我们来试一试,很好玩的:

 
4.PNG

最后,我们输入no来让客户端主动断开与服务器的连接

 
5.PNG




原文地址:https://www.cnblogs.com/blange/p/8488551.html