php socket 客户端代码

<?php
class SendDevAction{
    //log日志文件
    private $logDevFile = "";
    //日志字符串
    private $logStr = "";
    //用于发送接收的socket对象
    private $socket;
    //socket连接对象
    private $connect;
    //对方服务器ip
    private $host = "211.155.82.229";
    //服务器端口
    private $port = 14527;
    //接收回传字符串长度
    private $getStrLength = 16384;

    function __construct(){
        //确定日志文件路径，（自定义）
        $this->logDevFile = "Temp/socket_log/" . date("Y-m-d") . "Dev.log";

        //创建一个socket，定义相关属性。AF_INET 在socket中定义为常量值为2，SOCK_STREAM常量值为1，SOL_TCP值为6
        $this->socket = socket_create ( AF_INET, SOCK_STREAM, SOL_TCP );
        //连接对方机器
        $this->connect = socket_connect ( $this->socket, $this->host, $this->port );

        //第一次握手，如果失败则返回不再执行
        $this->firstHandshake();
    }
    
    //socket第一次握手
    function firstHandshake(){
        //日志写入本次握手时间，和远程服务器(发送+接收)一次算一次握手
        $this->logStr .= "

".date("Y-m-d H:i:s")."
";
        
        //要发送的字符串
        $sendStr = "hello world";
        //日志写入发送的字符串
        $this->logStr .= $sendStr."
";
        //发送字符串
        socket_write ( $this->socket, $sendStr, strlen ( $sendStr ) );
        
        //接收
        $getStr = socket_read ( $this->socket, $this->getStrLength );
        /*
        //如果接收字符串过大，可循环多次接收直到接收完整
        $getStr = "";
        while(true){
            $getStr .= socket_read( $this->socket,$this->getStrLength,PHP_BINARY_READ);
            //根据回传字符串内容格式判断已接收完全字符串，这里回传字符串以 }] 结尾，并且全文只包含一次 }] 字符串
            if(substr_count($getStr, "}]") > 0){
                break;
            }
        }
        */
        //日志写入接收完成时间
        $this->logStr .= date("Y-m-d H:i:s")."
";
        //日志写入接收字符串
        $this->logStr .= $getStr."

";
        
        //将日志内容补充写入日志文件文本的最下面，如无日志文件则生成新日志文件
        file_put_contents($this->logDevFile, $this->logStr,FILE_APPEND);
        //关闭socket连接
        socket_close ( $this->connect );
        //关闭socket对象
        socket_close ( $this->socket );
    }
}
//此socket代码只是发送消息的客户端，不是接收的服务器端，服务器端以后补充
$sendDevAction = new SendDevAction();