socket 发送邮件

原代码如下:

set_time_limit(120);
class smtp_mail
{
var $host; //主机
var $port; //端口 一般为25
var $user; //smtp认证的帐号
var $pass; //认证密码
var $debug = false; //是否显示和服务器会话信息？
var $conn;
var $result_str; //结果
var $in; //客户机发送的命令
var $from; //源信箱
var $to; //目标信箱
var $subject; //主题
var $body; //内容
function smtp_mail($host,$port,$user,$pass,$debug=false)
{
$this->host = $host;
$this->port = $port;
$this->user = base64_encode($user);
$this->pass = base64_encode($pass);
$this->debug = $debug;
$this->socket = socket_create (AF_INET, SOCK_STREAM, SOL_TCP); //具体用法请参考手册
if($this->socket)
{
$this->result_str = "创建socket:".socket_strerror(socket_last_error());
$this->debug_show($this->result_str);
}
else
{
exit("初始化失败，请检查您的网络连接和参数");
}
$this->conn = socket_connect($this->socket,$this->host,$this->port);
if($this->conn)
{
$this->result_str = "创建socket连接:".socket_strerror(socket_last_error());
$this->debug_show($this->result_str);
}
else
{
exit("初始化失败，请检查您的网络连接和参数");
}
$this->result_str = "服务器应答：".socket_read ($this->socket, 1024)."";
$this->debug_show($this->result_str);

}
function debug_show($str)
{
if($this->debug)
{
echo $str."

rn";
}
}
function send($from,$to,$subject,$body)
{
if($from == "" || $to == "")
{
exit("请输入信箱地址");
}
if($subject == "") $sebject = "无标题";
if($body == "") $body = "无内容";
$this->from = $from;
$this->to = $to;
$this->subject = $subject;
$this->body = $body;
$all = "from:".$this->from."n";
$all .= "to:".$this->to."n";
$all .= "subject:".$this->subject."n";
$all .= $this->body;
/*
如过把$all的内容再加处理，就可以实现发送mime邮件了
不过还需要加很多程序
*/

//以下是和服务器会话
$this->in = "ehlo helorn";
$this->docommand();
$this->in = "auth loginrn";
$this->docommand();
$this->in = $this->user."rn";
$this->docommand();
$this->in = $this->pass."rn";
$this->docommand();
$this->in = "mail from:".$this->from."rn";
$this->docommand();
$this->in = "rcpt to:".$this->to."rn";
$this->docommand();
$this->in = "datarn";
$this->docommand();
$this->in = $all."rn.rn";
$this->docommand();
$this->in = "quitrn";
$this->docommand();
//结束，关闭连接

}
function docommand()
{
socket_write ($this->socket, $this->in, strlen ($this->in));
$this->debug_show("客户机命令：".$this->in);
$this->result_str = "服务器应答：".socket_read ($this->socket, 1024)."";
$this->debug_show($this->result_str);
}
}
//这个是我做的测试，我用的是smtp.163.com，那你的信箱也必须是163.com的，要不人家不让你发！！
//你用这个类的时候你修改成你自己的信箱就可以了
$smtp = new smtp_mail("smtp.163.com","25","t_design","000000",true);
//如果你需要显示会话信息，请将上面的修改成
//$smtp = new smtp_mail("smtp.163.com","25","你的163.com的帐号","你的密码",true);
$smtp->send("t_design@163.com","t_beijing@yahoo.com.cn","你好","你好");
?>