首页 / 网页编程 / PHP / PHP实现发送邮件的方法（基于简单邮件发送类）

<?php /*邮件发送类 *功能：使用smtp服务器发送邮件 */ class smtp {/* 全局变量 */var $smtp_port;var $time_out;var $host_name;var $log_file;var $relay_host;var $debug;var $auth;var $user;var $pass;var $sock;/* 构造函数 */function smtp（$relay_host = "", $smtp_port = 25, $auth = false, $log_file="", $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 = $log_file; //邮件发送成功失败的日志记录文件$this->sock = FALSE;}function mail_encode（$str）{ //return "=?utf-8?B?".base64_encode（mb_convert_encoding（$str, "GBK", "UTF-8"））."?="; return "=?UTF-8?B?".base64_encode（$str）."?="; }/* 主函数，发送邮件 */function sendmail（$flag, $boundary, $to, $from, $subject = "", $body = "", $mailtype, $cc = "", $bcc = "", $additional_headers = ""） { $mail_from = $this->get_address （ $this->strip_comment （ $from ） ）; $body = ereg_replace （ "（^|（
））（.）", "1.3", $body ）; $header = "MIME-Version:1.0
"; if （$mailtype == "HTML"） {if （$flag == 2） { $header .= "Content-Type:multipart/mixed; boundary= $boundary
";} else { $header .= "Content-Type:text/html; charset="UTF-8" 
";} } $header .= "To: " . $to . "
"; if （$cc ！= ""） {$header .= "Cc: " . $cc . "
"; }$header .= "From: $from<" . $from . ">
"; $subject = self::mail_encode（$subject）; $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 $sent;}/* 私有函数 */function smtp_send（$helo, $from, $to, $header, $body = ""） { if （！ $this->smtp_putcmd （ "HELO", $helo ）） {return $this->smtp_error （ "sending HELO command" ）; } if （$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 = ereg_replace （ "^.+@（[^@]+）{1}quot;, "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 （！ ereg （ "^[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 （ ereg （ $comment, $address ） ） { $address = ereg_replace （ $comment, "", $address ）;}return $address; } function get_address（$address） {$address = ereg_replace （ "（[ 	
]）+", "", $address ）;$address = ereg_replace （ "^.*<（.+）>.*{1}quot;, "1", $address ）;return $address; } function smtp_debug（$message） {if （$this->debug） { echo $message;} }}?>

<?php //文件全路径名称，文件名称 function send_smtp_mail（$file, $fileName） {require （"smtp_mail.php"）;date_default_timezone_set （ "Asia/Shanghai" ）;$subject = date （ "Y-m-d" ） . "邮件标题"; //邮件标题$content = "邮件内容！"; //邮件内容//$file = "/a/b/c.txt"; //附件//$fileName = "email_log.log"; //附件名称$smtpserver = "服务器ip"; //SMTP服务器$smtpserverport = 25; //SMTP服务器端口$bcc = ""; //副收件人//$smtpuser = ""; //SMTP服务器的用户帐号//$smtppass = ""; //SMTP服务器的用户密码$smtpmailfrom = "aaa@bbb.com"; //SMTP服务器的用户邮箱,邮件发送者$smtpemailto = "邮箱1，邮箱2，邮箱3"; //邮件接受者$cc = ""; //抄送$mailsubject = $subject; //邮件主题$mailtype = "HTML"; //邮件格式（HTML/TXT）,TXT为文本邮件$additional_headers = "";$smtplogfile = ""; //发送邮件的日志文件，如果没有就不记录// 定义分界线$boundary = uniqid （ "" ）;$headers = "Content-type: multipart/mixed; boundary= $boundary
";//附件类型$mimeType = "application/unknown";// 打开文件$fp = fopen （ $file, "r" ）;// 把整个文件读入一个变量$read = fread （ $fp, filesize （ $file ） ）;//我们用base64方法把它编码$read = base64_encode （ $read ）;//把这个长字符串切成由每行76个字符组成的小块$read = chunk_split （ $read ）;fclose （ $fp ）; //关闭文件/* 邮件发送代码 */$flag = 1; //判断使用什么样的文件头1或2if （$fileName == ""） { //没有附件 $body = $content;} else { //有附件 $flag = 2; if （$mailtype == "HTML"） {$body = "--$boundary
"; //此必须
$body .= "Content-Type:text/html

"; //此必须

$body .= "$content
";$body .= "--$boundary
";$body .= "Content-type: $mimeType; name=$fileName
";$body .= "Content-disposition: attachment; filename=$fileName
";$body .= "Content-Transfer-Encoding: BASE64

";$body .= "$read

";$body .= "--$boundary--
"; } else {$body = "--$boundary
";$body .= "Content-type: Content-type: text/plain; charset=iso-8859-1

";$body .= "Content-transfer-encoding: 8bit

";$body .= "$content

";$body .= "--$boundary
";$body .= "Content-type: $mimeType; name=$fileName

";$body .= "Content-disposition: attachment; filename=$fileName

";$body .= "Content-transfer-encoding: base64

";$body .= "$read

";$body .= "--$boundary--
"; }}$mailbody = $body; //邮件内容//这里面的一个true是表示使用身份验证,否则不使用身份验证.$smtp = new smtp （ $smtpserver, $smtpserverport, false, $smtplogfile ）;//$smtp->debug = TRUE;//是否显示发送的调试信息if （$smtp->sendmail （ $flag, $boundary, $smtpemailto, $smtpmailfrom, $mailsubject, $mailbody, $mailtype, $cc, $bcc, $additional_headers ）） { echo （"发送成功"）;} else { echo （"发送失败"）;} } ?>