本文实例讲述了PHP使用swoole编写简单的echo服务器。分享给大家供大家参考，具体如下：
server.php代码如下：
<?php
class EchoServer {
protected $serv = null;
public function __construct() {
$this->serv = new swoole_server(\'0.0.0.0\', 8888);
//配置参数
$this->serv->set(array(
\'worker_num\' => 4,
\'daemonize\' => 0,
));
//注册回调函数
$this->serv->on(\'start\', array($this, \'start\'));
$this->serv->on(\'connect\', array($this, \'connect\'));
$this->serv->on(\'receive\', array($this, \'receive\'));
$this->serv->on(\'close\', array($this, \'close\'));
//启动服务
$this->serv->start();
}
public function start($serv) {
echo \"start \\n\";
}
//有客户端连接时
public function connect($serv, $fd) {
echo \"connect \\n\";
$serv->send($fd, \"hello \\n\");
}
public function close($serv, $fd) {
echo \"close \\n\";
}
public function receive($serv, $fd, $from_id, $data) {
echo \"get message {$fd} : {$data} \\n\";
//向客户端发送信息
$serv->send($fd, $data . \"\\n\");
}
}
$serv = new EchoServer();
client.php代码如下：
<?php
class EchoClient {
protected $client = null;
public function __construct() {
//注意这里需设置为异步，不然下面无法设置事件回调函数
$this->client = new swoole_client(SWOOLE_SOCK_TCP, SWOOLE_SOCK_ASYNC);
$this->client->on(\'connect\', array($this, \'connect\'));
$this->client->on(\'receive\', array($this, \'receive\'));
$this->client->on(\'close\', array($this, \'close\'));
$this->client->on(\'error\', array($this, \'error\'));
//连接服务端
$this->client->connect(\'0.0.0.0\', 8888);
}
public function connect($client) {
echo \"connect \\n\";
}
public function receive($client, $data) {
echo \"server send: {$data}\";
//向标准输出写入数据
fwrite(STDOUT, \"请输入消息：\");
//获取标准输入数据
$msg = trim(fgets(STDIN));
//向服务端发送数据
$client->send($msg);
}
public function close($client) {
echo \"close \\n\";
}
public function error($client) {
echo \"error \\n\";
}
}
$cli = new EchoClient();
然后分别运行这两个脚本
> /data/php56/bin/php server.php > /data/php56/bin/php client.php
运行结果如下：
更多关于PHP相关内容感兴趣的读者可查看本站专题：《PHP网络编程技巧总结》、《php socket用法总结》、《php面向对象程序设计入门教程》、《PHP数据结构与算法教程》及《php程序设计算法总结》
希望本文所述对大家PHP程序设计有所帮助。
