smtp ：php实现发送邮件类

　　尝试的阶段感觉特别难搞，成功发送邮件以后觉得特别容易，这边是成功发送邮件的代码

<?php

class smtp

{

/* Public Variables */

var $smtp_port;

var $time_out;

var $host_name;

var $log_file;

var $relay_host;

var $debug;

var $auth;

var $user;

var $pass;

 

/* Private Variables */

var $sock;

 

/* Constractor */

function smtp($relay_host = "", $smtp_port = 25,$auth = false,$user,$pass)

{

$this->debug = FALSE;

$this->smtp_port = $smtp_port;

$this->relay_host = $relay_host;

$this->time_out = 30; //is used in fsockopen()

$this->auth = $auth;//auth

$this->user = $user;

$this->pass = $pass;

$this->host_name = "localhost"; //is used in HELO command

$this->log_file = "";

$this->sock = FALSE;

}

 

/* Main Function */

function sendmail($to, $from, $subject = "", $body = "", $mailtype, $cc = "", $bcc = "", $additional_headers = "")

{

$mail_from = $this->get_address($this->strip_comment($from));

$body = preg_replace("/(^|(
))(.)/", "1.3", $body);

$header = "MIME-Version:1.0
";
$header .= "Content-type: text/plain; charset=utf-8
";

if($mailtype=="HTML")

{

$header .= "Content-Type:text/html
";

}

$header .= "To: ".$to."
";

if ($cc != "")

{

$header .= "Cc: ".$cc."
";

}

$header .= "From: $from<".$from.">
";

$header .= "Subject: ".$subject."
";

$header .= $additional_headers;

$header .= "Date: ".date("r")."
";

$header .= "X-Mailer:By Redhat (PHP/".phpversion().")
";

list($msec, $sec) = explode(" ", microtime());

$header .= "Message-ID: <".date("YmdHis", $sec).".".($msec*1000000).".".$mail_from.">
";

$TO = explode(",", $this->strip_comment($to));

 

if ($cc != "")

{

$TO = array_merge($TO, explode(",", $this->strip_comment($cc)));

}

if ($bcc != "")

{

$TO = array_merge($TO, explode(",", $this->strip_comment($bcc)));

}

$sent = TRUE;

foreach ($TO as $rcpt_to)

{

$rcpt_to = $this->get_address($rcpt_to);

if (!$this->smtp_sockopen($rcpt_to))

{

$this->log_write("Error: Cannot send email to ".$rcpt_to."
");

$sent = FALSE;

continue;

}

if ($this->smtp_send($this->host_name, $mail_from, $rcpt_to, $header, $body))

{

$this->log_write("E-mail has been sent to <".$rcpt_to.">
");

}

else

{

$this->log_write("Error: Cannot send email to <".$rcpt_to.">
");

$sent = FALSE;

}

fclose($this->sock);

$this->log_write("Disconnected from remote host
");

}

return $sent;

}

 

/* Private Functions */

function smtp_send($helo, $from, $to, $header, $body = "")

{

if (!$this->smtp_putcmd("HELO", $helo))

{

return $this->smtp_error("sending HELO command");

}

 

#auth

if($this->auth)

{

if (!$this->smtp_putcmd("AUTH LOGIN", base64_encode($this->user)))

{

return $this->smtp_error("sending HELO command");

}

if (!$this->smtp_putcmd("", base64_encode($this->pass)))

{

return $this->smtp_error("sending HELO command");

}

}

if (!$this->smtp_putcmd("MAIL", "FROM:<".$from.">"))

{

return $this->smtp_error("sending MAIL FROM command");

}

if (!$this->smtp_putcmd("RCPT", "TO:<".$to.">"))

{

return $this->smtp_error("sending RCPT TO command");

}

if (!$this->smtp_putcmd("DATA"))

{

return $this->smtp_error("sending DATA command");

}

if (!$this->smtp_message($header, $body))

{

return $this->smtp_error("sending message");

}

if (!$this->smtp_eom())

{

return $this->smtp_error("sending <CR><LF>.<CR><LF> [EOM]");

}

if (!$this->smtp_putcmd("QUIT"))

{

return $this->smtp_error("sending QUIT command");

}

return TRUE;

}

 

function smtp_sockopen($address)

{

if ($this->relay_host == "")

{

return $this->smtp_sockopen_mx($address);

}

else

{

return $this->smtp_sockopen_relay();

}

}

 

function smtp_sockopen_relay()

{

$this->log_write("Trying to ".$this->relay_host.":".$this->smtp_port."
");

$this->sock = @fsockopen($this->relay_host, $this->smtp_port, $errno, $errstr, $this->time_out);

if (!($this->sock && $this->smtp_ok()))

{

$this->log_write("Error: Cannot connenct to relay host ".$this->relay_host."
");

$this->log_write("Error: ".$errstr." (".$errno.")
");

return FALSE;

}

$this->log_write("Connected to relay host ".$this->relay_host."
");

return TRUE;;

}

 

function smtp_sockopen_mx($address)

{

$domain = preg_replace("/^.+@([^@]+)$/", "1", $address);

if (!@getmxrr($domain, $MXHOSTS))

{

$this->log_write("Error: Cannot resolve MX "".$domain.""
");

return FALSE;

}

foreach ($MXHOSTS as $host)

{

$this->log_write("Trying to ".$host.":".$this->smtp_port."
");

$this->sock = @fsockopen($host, $this->smtp_port, $errno, $errstr, $this->time_out);

if (!($this->sock && $this->smtp_ok()))

{

$this->log_write("Warning: Cannot connect to mx host ".$host."
");

$this->log_write("Error: ".$errstr." (".$errno.")
");

continue;

}

$this->log_write("Connected to mx host ".$host."
");

return TRUE;

}

$this->log_write("Error: Cannot connect to any mx hosts (".implode(", ", $MXHOSTS).")
");

return FALSE;

}

 

function smtp_message($header, $body)

{

fputs($this->sock, $header."
".$body);

$this->smtp_debug("> ".str_replace("
", "
"."> ", $header."
> ".$body."
> "));

return TRUE;

}

 

function smtp_eom()

{

fputs($this->sock, "
.
");

$this->smtp_debug(". [EOM]
");

return $this->smtp_ok();

}

 

function smtp_ok()

{

$response = str_replace("
", "", fgets($this->sock, 512));

$this->smtp_debug($response."
");

if (!preg_match("/^[23]/", $response))

{

fputs($this->sock, "QUIT
");

fgets($this->sock, 512);

$this->log_write("Error: Remote host returned "".$response.""
");

return FALSE;

}

return TRUE;

}

 

function smtp_putcmd($cmd, $arg = "")

{

if ($arg != "")

{

if($cmd=="")

{

$cmd = $arg;

}

else

{

$cmd = $cmd." ".$arg;

}

}

fputs($this->sock, $cmd."
");

$this->smtp_debug("> ".$cmd."
");

return $this->smtp_ok();

}

 

function smtp_error($string)

{

$this->log_write("Error: Error occurred while ".$string.".
");

return FALSE;

}

 

function log_write($message)

{

$this->smtp_debug($message);

if ($this->log_file == "")

{

return TRUE;

}

$message = date("M d H:i:s ").get_current_user()."[".getmypid()."]: ".$message;

if (!@file_exists($this->log_file) || !($fp = @fopen($this->log_file, "a")))

{

$this->smtp_debug("Warning: Cannot open log file "".$this->log_file.""
");

return FALSE;;

}

flock($fp, LOCK_EX);

fputs($fp, $message);

fclose($fp);

return TRUE;

}

 

function strip_comment($address)

{

$comment = "/([^()]*)/";

while (preg_match($comment, $address))

{

$address = preg_replace($comment, "", $address);

}

return $address;

}

 

function get_address($address)

{

$address = preg_replace("/([ 	
])+/", "", $address);

$address = preg_replace("/^.*<(.+)>.*$/", "1", $address);

return $address;

}

 

function smtp_debug($message)

{

if ($this->debug)

{

echo $message;

}

}

 

}

 

$smtpserver = "smtp.139.com";//SMTP服务器

$smtpserverport = 25;//SMTP服务器端口

$smtpusermail = "yaradish@139.com";//SMTP服务器的用户邮箱

$smtpemailto = "962100590@qq.com";//"yaradishyang@soarinfotech.com";//发送给谁

$smtpuser = "yaradish@139.com";//SMTP服务器的用户帐号

$smtppass = "********";//SMTP服务器的用户密码

$mailsubject = "报警";//邮件主题

$mailbody = "aaa此站点有500页面";//邮件内容

$mailtype = "HTML";//邮件格式（HTML/TXT）

$smtp = new smtp($smtpserver,$smtpserverport,true,$smtpuser,$smtppass);//这里面的一个true是表示使用身份验证,否则不使用身份验证

$smtp->debug = TRUE;//是否显示发送的调试信息

$smtp->sendmail($smtpemailto, $smtpusermail, $mailsubject, $mailbody, $mailtype);

?>

其中遇到了一些问题，已记录

https://www.cnblogs.com/yaradish/p/10038046.html