本文示例为大家分享了强大的PHP发邮件类，供大家参考，具体内容如下
<?php class smtp { var $smtp_port; var $time_out; var $host_name; var $log_file; var $relay_host; var $debug; var $auth; var $user; var $pass; var $sock; function smtp($relay_host = "", $smtp_port = 25,$auth = false,$user,$pass) { $this->debug = true; $this->smtp_port = $smtp_port; $this->relay_host = $relay_host; $this->time_out = 30; $this->auth = $auth; $this->user = $user; $this->pass = $pass; $this->host_name = "localhost"; $this->log_file =""; $this->sock = FALSE; } function sendmail($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, 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."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 "<br>"; echo $header; 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."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->smtp_port, $errno, $errstr, $this->time_out); if (!($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); $address = ereg_replace("^.*<(.+)>.*$", "1", $address); return $address; } function smtp_debug($message) { if ($this->debug) { echo $message."<br>"; } } function get_attach_type($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; } } /** *实例化邮件类 */ $smtpserver = "smtp.163.com"; //SMTP服务器 $smtpserverport =25; //SMTP服务器端口 $smtpusermail = "240331511@163.com"; //SMTP服务器的用户邮箱 $smtpemailto = "240331511@163.com"; //发送给谁 $smtpuser = "240331511@163.com"; //SMTP服务器的用户帐号 $smtppass = "123147mcl"; //SMTP服务器的用户密码 $mailsubject = "PHP100测试邮件系统"; //邮件主题 $mailbody = "<h1>你的用户名是张三，密码是123147mcl </h1>"; //邮件内容 $mailtype = "HTML"; //邮件格式（HTML/TXT）,TXT为文本邮件 $smtp = new smtp($smtpserver,$smtpserverport,true,$smtpuser,$smtppass); $smtp->debug = true; //是否显示发送的调试信息 $smtp->sendmail($smtpemailto, $smtpusermail, $mailsubject, $mailbody, $mailtype); ?>
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查字典教程网。
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