php使用smtp协议发邮件
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php有一个mail()函数，可以用来发邮件，但是在系统里面需要进行详细的配置。如果在windows系统里面还有安装sendmail软件。而且一个服务器上只能统一使用相同是smtp来发送邮件。无法满足更复杂的需求。 网上有一个smtp发邮件的组件，叫jmail，在asp和asp.net里面非常流行这个组件。在php中，也可以使用com对象来调用jmail的功能。不过jmail是一个dll组件，貌似只能在windows里面使用。我们写php的系统，肯定希望在windows或linux上尽可能都能兼容，所以，这个也放弃了。 最后，范围就很小了。只能自己来实现一个smtp发邮件的功能。正好在网上找到一个email.class.php的类。它貌似最早由一个外国人写的，可以完全模拟smtp发邮件。调用时，传递smtp服务器地址、端口、用户名、密码、发件人、收件人、主题、内容、邮件类型等，非常方便。同一个服务器不同的应用，可以同一个应用的不同模块，都可以自由的调用。 代码如下 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)); $body = ereg_replace("(^|(rn))(.)","1.3",$body); $header = "MIME-Version:1.0rn"; if($mailtype=="HTML"){ $header .= "Content-Type:text/htmlrn"; } $header .= "To: ".$to."rn"; if ($cc != "") { $header .= "Cc: ".$cc."rn"; } $header .= "From: $from<".$from.">rn"; $header .= "Subject: ".$subject."rn"; $header .= $additional_headers; $header .= "Date: ".date("r")."rn"; $header .= "X-Mailer:By Redhat (PHP/".phpversion().")rn"; list($msec,$sec) = explode(" ",microtime()); $header .= "Message-ID: <".date("YmdHis",$sec).".".($msec*1000000).".".$mail_from.">rn"; $TO = explode(",",$this->strip_comment($to)); if ($cc != "") { $TO = array_merge($TO,explode(",$this->strip_comment($cc))); } if ($bcc != "") { $TO = array_merge($TO,$this->strip_comment($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."n"); $sent = FALSE; continue; } if ($this->smtp_send($this->host_name,$mail_from,$rcpt_to,$header,$body)) { $this->log_write("E-mail has been sent to <".$rcpt_to.">n"); } else { $this->log_write("Error: Cannot send email to <".$rcpt_to.">n"); $sent = FALSE; } fclose($this->sock); $this->log_write("Disconnected from remote hostn"); } return $sent; } /* Private Functions */ function smtp_send($helo,$to,$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 $this->smtp_error("sending } if (!$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."n"); $this->sock = @fsockopen($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."n"); $this->log_write("Error: ".$errstr." (".$errno.")n"); return FALSE; } $this->log_write("Connected to relay host ".$this->relay_host."n"); return TRUE;; } function smtp_sockopen_mx($address) { $domain = ereg_replace("^.+@([^@]+)$","1",$address); if (!@getmxrr($domain,$MXHOSTS)) { $this->log_write("Error: Cannot resolve MX "".$domain.""n"); return FALSE; } //专注与php学习 http://www.daixiaorui.com 欢迎您的访问 foreach ($MXHOSTS as $host) { $this->log_write("Trying to ".$host.":".$this->smtp_port."n"); $this->sock = @fsockopen($host,$this->time_out); if (!($this->sock && $this->smtp_ok())) { $this->log_write("Warning: Cannot connect to mx host ".$host."n"); $this->log_write("Error: ".$errstr." (".$errno.")n"); continue; } $this->log_write("Connected to mx host ".$host."n"); return TRUE; } $this->log_write("Error: Cannot connect to any mx hosts (".implode(",$MXHOSTS).")n"); return FALSE; } function smtp_message($header,$body) { fputs($this->sock,$header."rn".$body); $this->smtp_debug("> ".str_replace("rn","n"."> ",$header."n> ".$body."n> ")); return TRUE; } function smtp_eom() { fputs($this->sock,"rn.rn"); $this->smtp_debug(". [EOM]n"); return $this->smtp_ok(); } function smtp_ok() { $response = str_replace("rn","",fgets($this->sock,512)); $this->smtp_debug($response."n"); if (!ereg("^[23]",$response)) { fputs($this->sock,"QUITrn"); fgets($this->sock,512); $this->log_write("Error: Remote host returned "".$response.""n"); return FALSE; } return TRUE; } function smtp_putcmd($cmd,$arg = "") { if ($arg != "") { if($cmd=="") $cmd = $arg; else $cmd = $cmd." ".$arg; } fputs($this->sock,$cmd."rn"); $this->smtp_debug("> ".$cmd."n"); return $this->smtp_ok(); } function smtp_error($string) { $this->log_write("Error: Error occurred while ".$string.".n"); 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.""n"); return FALSE;; } flock($fp,LOCK_EX); fputs($fp,$message); fclose($fp); return TRUE; } function strip_comment($address) { $comment = "([^()]*)"; while (ereg($comment,$address)) { $address = ereg_replace($comment,$address); } return $address; } function get_address($address) { $address = ereg_replace("([ trn])+",$address); $address = ereg_replace("^.*<(.+)>.*$",$address); return $address; } function smtp_debug($message) { if ($this->debug) { echo $message; } } } ?> （编辑：李大同） 【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容! |