分享个发邮件api 便于不支持smtp的虚拟空间使用
host = $host;
$this->port = $port;
$this->errno = $errno;
$this->errstr = $errstr;
$this->timeout = $timeout;
$this->auth = $auth;
$this->user = $user;
$this->pass = $pass;
$this->from = $from;
}
function send_mail_sock($subject,$message,$to,$from_name,$mailformat=0)//邮件标题,邮件内容,收件地址,邮件格式1=text|0=html,默认为0
{
$host = $this->host;
$port = $this->port;
$errno = $this->errno;
$errstr = $this->errstr;
$timeout = $this->timeout;
$auth = $this->auth;
$user = $this->user;
$pass = $this->pass;
$from = $this->from;
/*
1.创建sock，并打开连接
2.设置为阻塞模式
3.测试smtp应答码是否为220，220代表邮件服务就绪
4.发送用户身份验证，由用户设置
1=EHLO Host Domain \r\n
0=HELO Host Domain \r\n
?.读取服务器端发送给客户端的返回数据
smtp.163.com 发送的数据为：
250-PIPELINING//流水命令，告诉客户端可以一次发送多个命令来提高速度，在这里PHP
并没有使用，因为PHP单个文件的运行还是单线程的
250-AUTH LOGIN PLAIN
250-AUTH=LOGIN PLAIN
250 8BITMIME//得到这一行也就是smtp服务器发送结束了，等待客户端发送命令
5.发送AUTH LOGIN命令
6.发送用户名
7.发送密码
?.身份验证过成功后后，
8.向服务器添加from
9.向服务器添加to
10.发送DATA命令,开始输入email数据,以"."号结束
11.书写邮件内容
12.将邮件内容发送到smtp服务器
13.发送QUIT命令，结束会话
*/
$fp = fsockopen($host,$port,$errno,$errstr,$timeout);//打开sock的网络连接
if(!$fp){return '1.没有设置好smtp服务';}
stream_set_blocking($fp, true);//设置为阻塞模式,此模式读不到数据则会停止在那
$mail_return=fgets($fp, 512);//读取512字节内容
if(substr($mail_return, 0, 3) != '220')
{return $host.'-2.返回应答码为'.substr($mail_return, 0, 3);}//返回应答码所代表意思请参考'smtp协议.txt'
fputs($fp, ($auth ? 'EHLO' : 'HELO')." ".$host."\r\n");//服务器标识用户身份 1=身份验证的标识,0=不需要身份验证的标识
$mail_return = fgets($fp, 512);
if(substr($mail_return, 0, 3) != 220 && substr($mail_return, 0, 3) != 250)
{return $host.'-3.返回应答码为'.substr($mail_return, 0, 3);}
while(true)
{
$mail_return = fgets($fp, 512);
if(substr($mail_return, 3, 1) != '-' || empty($mail_return))
{break;}
}
if($auth)
{
fputs($fp, "AUTH LOGIN\r\n");
$mail_return = fgets($fp, 512);
if(substr($mail_return, 0, 3) != 334)
{return $host.'-5.返回应答码为'.substr($mail_return, 0, 3);}
fputs($fp, base64_encode($user)."\r\n");
$mail_return = fgets($fp, 512);
if(substr($mail_return, 0, 3) != 334)
{return $host.'-6.返回应答码为'.substr($mail_return, 0, 3).'user='.$user;}
fputs($fp, base64_encode($pass)."\r\n");
$mail_return=fgets($fp, 512);
if(substr($mail_return, 0, 3) != 235)
{return $host.'-7.用户验证失败，应答码为'.substr($mail_return, 0, 3);}
}
//向服务器添加FROM and TO
//------------------------------------------------------------------------------------------------------------------------
fputs($fp, "MAIL FROM: ".$from."\r\n");//有两种格式，MAIL FROM:xxx@xx.com和MAIL FROM:
$mail_return = fgets($fp, 512);
if(substr($mail_return, 0, 3) != 250)
{
fputs($fp, "MAIL FROM: <".$from.">\r\n");
$mail_return = fgets($fp, 512);
if(substr($mail_return, 0, 3) != 250)
{return $host.'-8.返回应答码为'.substr($mail_return, 0, 3);}
}
foreach(explode(',', $to) as $mailto)
{
$mailto = trim($mailto);
if($mailto)
{
fputs($fp, "RCPT TO: ".$mailto."\r\n");
$mail_return = fgets($fp, 512);
if(substr($mail_return, 0, 3) != 250)
{
fputs($fp, "RCPT TO: <".$mailto.">\r\n");
$mail_return = fgets($fp, 512);
if(substr($mail_return, 0, 3) != 250)
{return $host.'-9.返回应答码为'.substr($mail_return, 0, 3);}
}
}
}
//------------------------------------------------------------------------------------------------------------------------
fputs($fp, "DATA\r\n");//开始输入email数据,以"."号结束
$mail_return = fgets($fp, 512);
if(substr($mail_return, 0, 3) != 354)
{return $host.'-10.返回应答码为'.substr($mail_return, 0, 3);}
//邮件内容
//-----------------------------------------------------------
$mail_message = "From:".$from_name.'<'.$from.">\r\n";
$mail_message .= "To:".$to."\r\n";
$mail_message .= "Subject:".str_replace("\n",' ',$subject)."\r\n";
if($mailformat==1)
{$mail_message .= "Content-Type: text/html;\r\n"; }
else
{$mail_message .= "Content-Type: text/plain;\r\n";}
// $mail_message .= "charset=gb2312\r\n\r\n";
$mail_message .= $message;
$mail_message .= "\r\n.\r\n";
//-----------------------------------------------------------
fputs($fp,$mail_message);
fputs($fp,"QUIT\r\n");
return 1;
}
}
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