PHP使用SMTP邮件服务器发送邮件示例

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->host_name = "smtp.163.com"; //is used in HELO command $this->log_file = ""; $this->sock = FALSE; } /* Main Function */ function sendmail($to,$from,$subject = "",$body = "",$mailtype,$cc = "",$bcc = "",$additional_headers = "") { $header = ""; $mail_from = $this->get_address($this->strip_comment($from)); $body = mb_ereg_replace("(^|(rn))(.)","1.3",$body); $header .= "MIME-Version:1.0rn"; if ($mailtype == "HTML") { //邮件发送类型 //$header .= "Content-Type:text/htmlrn"; $header .= 'Content-type: text/html; charset=utf-8' . "rn"; } $header .= "To: " . $to . "rn"; if ($cc != "") { $header .= "Cc: " . $cc . "rn"; } $header .= "From: " . $from . "rn"; // $header .= "From: $from<".$from.">rn"; //这里只显示邮箱地址，不够人性化 $header .= "Subject: " . $subject . "rn"; $header .= $additional_headers; $header .= "Date: " . date("r") . "rn"; $header .= "X-Mailer:By (PHP/" . phpversion() . ")rn"; list($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))); //合并一个或多个数组 } 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"); } echo "
"; //echo $header; 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 $this->smtp_error("sending . [EOM]"); } if (!$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 . "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 "" . $domain . ""n"); return FALSE; } foreach ($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 (!mb_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) { $comment = "([^()]*)"; while (mb_ereg($comment,$address)) { $address = mb_ereg_replace($comment,$address); } return $address; } function get_address($address) { $address = mb_ereg_replace("([ trn])+",$address); $address = mb_ereg_replace("^.*<(.+)>.*$",$address); return $address; } function smtp_debug($message) { if ($this->debug) { echo $message . "
"; } } function get_attach_type($image_tag) // { $filedata = array(); $img_file_con = fopen($image_tag,"r"); unset($image_data); while ($tem_buffer = AddSlashes(fread($img_file_con,filesize($image_tag)))) $image_data .= $tem_buffer; fclose($img_file_con); $filedata['context'] = $image_data; $filedata['filename'] = basename($image_tag); $extension = substr($image_tag,strrpos($image_tag,"."),strlen($image_tag) - strrpos($image_tag,".")); switch ($extension) { case ".gif": $filedata['type'] = "image/gif"; break; case ".gz": $filedata['type'] = "application/x-gzip"; break; case ".htm": $filedata['type'] = "text/html"; break; case ".html": $filedata['type'] = "text/html"; break; case ".jpg": $filedata['type'] = "image/jpeg"; break; case ".tar": $filedata['type'] = "application/x-tar"; break; case ".txt": $filedata['type'] = "text/plain"; break; case ".zip": $filedata['type'] = "application/zip"; break; default: $filedata['type'] = "application/octet-stream"; break; } return $filedata; } } ?>

debug = TRUE; //是否显示发送的调试信息 $smtp->sendmail($smtpemailto,$smtpusermail,$mailsubject,$mailbody,$mailtype); } ?>