swoole一

In the company's business, the chat system uses the swoole framework. This framework is a PHP extension written in C language and is very convenient to use!

1 The installation process is very simple (no introduction is required)
2 Let’s take a look at the example copied from the official website document. I wrote the comments in detail

<code><span>// Server</span><span><span>class</span><span>Server</span>
{</span><span>private</span><span>$serv</span>;
<span>//构造函数</span><span>public</span><span><span>function</span><span>__construct</span><span>()</span> {</span><span>//新建一个对象,接收所有的ip链接,端口设置为9501</span><span>$this</span>->serv = <span>new</span> swoole_server(<span>"0.0.0.0"</span>, <span>9501</span>);
        <span>$this</span>->serv->set(<span>array</span>(
            <span>'worker_num'</span> => <span>8</span>, <span>//设置work进程的数量为8</span><span>'daemonize'</span> => <span>false</span>,<span>//设置为后台进程</span><span>'max_request'</span> => <span>10000</span>, <span>//每个worker进程允许处理的最大任务数</span><span>'dispatch_mode'</span> => <span>2</span>,
            <span>'debug_mode'</span>=> <span>1</span>
        ));

        <span>$this</span>->serv->on(<span>'Start'</span>, <span>array</span>(<span>$this</span>, <span>'onStart'</span>));<span>//设置回调函数 onstart</span><span>$this</span>->serv->on(<span>'Connect'</span>, <span>array</span>(<span>$this</span>, <span>'onConnect'</span>));
        <span>$this</span>->serv->on(<span>'Receive'</span>, <span>array</span>(<span>$this</span>, <span>'onReceive'</span>));
        <span>$this</span>->serv->on(<span>'Close'</span>, <span>array</span>(<span>$this</span>, <span>'onClose'</span>));
        <span>$this</span>->serv->start();
    }

    <span>public</span><span><span>function</span><span>onStart</span><span>( <span>$serv</span> )</span> {</span><span>echo</span><span>"Start\n"</span>;
    }

    <span>public</span><span><span>function</span><span>onConnect</span><span>( <span>$serv</span>, <span>$fd</span>, <span>$from_id</span> )</span> {</span><span>$serv</span>->send( <span>$fd</span>, <span>"Hello {$fd}!"</span> );
    }

    <span>public</span><span><span>function</span><span>onReceive</span><span>( swoole_server <span>$serv</span>, <span>$fd</span>, <span>$from_id</span>, <span>$data</span> )</span> {</span><span>echo</span><span>"Get Message From Client {$fd}:{$data}\n"</span>;
    }

    <span>public</span><span><span>function</span><span>onClose</span><span>( <span>$serv</span>, <span>$fd</span>, <span>$from_id</span> )</span> {</span><span>echo</span><span>"Client {$fd} close connection\n"</span>;
    }
}
<span>// 启动服务器</span><span>$server</span> = <span>new</span> Server();</code>

A. Create the swoole_server object through the constructor
B. Call the set function to set the relevant configuration options of swoole_server
C. Call the on function to set the relevant callback function. Specific instructions on the set configuration options and the on callback function

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The above has introduced swoole 1, including aspects of it. I hope it will be helpful to friends who are interested in PHP tutorials.