本文例項講述了PHP使用swoole編寫簡單的echo伺服器。分享給大家供大家參考，具體如下：

server.php程式碼如下：

<?php
class EchoServer {
  protected $serv = null;
 
  public function __construct() {
    $this->serv = new swoole_server('0.0.0.0',8888);
    //配置引數
    $this->serv->set(array(
      'worker_num' => 4,'daemonize' => 0,));
    //註冊回撥函式
    $this->serv->on('start',array($this,'start'));
    $this->serv->on('connect','connect'));
    $this->serv->on('receive','receive'));
    $this->serv->on('close','close'));
    //啟動服務
    $this->serv->start();
  }
 
  public function start($serv) {
    echo "start \n";
  }
 
  //有客戶端連線時
  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";
    //向客戶端傳送資訊
    $serv->send($fd,$data . "\n");
  }
}
 
$serv = new EchoServer();

client.php程式碼如下：

<?php
class EchoClient {
  protected $client = null;
 
  public function __construct() {
    //注意這裡需設定為非同步，不然下面無法設定事件回撥函式
    $this->client = new swoole_client(SWOOLE_SOCK_TCP,SWOOLE_SOCK_ASYNC);
 
    $this->client->on('connect','connect'));
    $this->client->on('receive','receive'));
    $this->client->on('close','close'));
    $this->client->on('error','error'));
    //連線服務端
    $this->client->connect('0.0.0.0',8888);
  }
 
  public function connect($client) {
    echo "connect \n";
  }
 
  public function receive($client,$data) {
    echo "server send: {$data}";
 
    //向標準輸出寫入資料
    fwrite(STDOUT,"請輸入訊息：");
    //獲取標準輸入資料
    $msg = trim(fgets(STDIN));
    //向服務端傳送資料
    $client->send($msg);
  }
 
  public function close($client) {
    echo "close \n";
  }
 
  public function error($client) {
    echo "error \n";
  }
}
 
$cli = new EchoClient();

然後分別執行這兩個指令碼

> /data/php56/bin/php server.php
> /data/php56/bin/php client.php

執行結果如下：

更多關於PHP相關內容感興趣的讀者可檢視本站專題：《PHP網路程式設計技巧總結》、《php socket用法總結》、《php面向物件程式設計入門教程》、《PHP資料結構與演算法教程》及《php程式設計演算法總結》

希望本文所述對大家PHP程式設計有所幫助。