本文实例为大家分享了php smtp发送邮件功能的具体代码，供大家参考，具体内容如下
<?phpheader("Content-Type: text/html; charset=utf-8"); 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); $header = "MIME-Version:1.0"; if($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 $message; } } }?>调用
<?phpheader("Content-Type: text/html; charset=utf-8"); //引入发送邮件类require("smtp.php");//使用163邮箱服务器$smtpserver = "smtp.163.com";//163邮箱服务器端口$smtpserverport = 25;//你的163服务器邮箱账号$smtpusermail = "xxx@163.com";//收件人邮箱$smtpemailto = "xxx@qq.com"; //你的邮箱账号(去掉@163.com)$smtpuser = "xxx";//你的163邮箱去掉后面的163.com//你的邮箱密码$smtppass = "xxx"; //你的163邮箱SMTP的授权码，千万不要填密码！！！ //邮件主题$mailsubject = "测试邮件发送";//邮件内容$mailbody = "PHP+MySQL";//邮件格式（HTML/TXT）,TXT为文本邮件$mailtype = "TXT";//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.$smtp = new smtp($smtpserver,$smtpserverport,true,$smtpuser,$smtppass);//是否显示发送的调试信息$smtp->debug = TRUE;//发送邮件$smtp->sendmail($smtpemailto, $smtpusermail, $mailsubject, $mailbody, $mailtype); ?>代码链接：
sendmail
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持网页设计。
