PHP实现发送邮件的方法(基于简单邮件发送类)_php技巧

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 ( '(^|(\r\n))(\.)', "\1.\3", $body );   $header = "MIME-Version:1.0\r\n";   if ($mailtype == "HTML") {    if ($flag == 2) {     $header .= "Content-Type:multipart/mixed; boundary= $boundary\r\n";    } else {     $header .= "Content-Type:text/html; charset=\"UTF-8\" \r\n";    }   }   $header .= "To: " . $to . "\r\n";     if ($cc != "") {    $header .= "Cc: " . $cc . "\r\n";   }    $header .= "From: $from\r\n";   $subject = self::mail_encode($subject);   $header .= "Subject: " . $subject . "\r\n";   $header .= $additional_headers;   $header .= "Date: " . date ( "r" ) . "\r\n";   $header .= "X-Mailer:By redhat (PHP/" . phpversion () . ")\r\n";   list ( $msec, $sec ) = explode ( " ", microtime () );    $header .= "Message-ID: \r\n";    $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 \n" );    } else {     $this->log_write ( "Error: Cannot send email to \n" );     $sent = FALSE;    }    fclose ( $this->sock );    $this->log_write ( "Disconnected from remote host\n" );   }   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:" )) {    return $this->smtp_error ( "sending MAIL FROM command" );   }   if (! $this->smtp_putcmd ( "RCPT", "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" );    $th<span>！本文来源gaodai#ma#com搞*!代#%^码网5</span><pre>搞gaodaima代码

is->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}quot;, “\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 . “\r\n” . $body ); $this->smtp_debug ( “> ” . str_replace ( “\r\n”, “\n” . “> “, $header . “\n> ” . $body . “\n> ” ) ); return TRUE; } function smtp_eom() { fputs ( $this->sock, “\r\n.\r\n” ); $this->smtp_debug ( “. [EOM]\n” ); return $this->smtp_ok (); } function smtp_ok() { $response = str_replace ( “\r\n”, “”, fgets ( $this->sock, 512 ) ); $this->smtp_debug ( $response . “\n” ); if (! ereg ( “^[23]”, $response )) { fputs ( $this->sock, “QUIT\r\n” ); 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 . “\r\n” ); $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 ( “([ \t\r\n])+”, “”, $address ); $address = ereg_replace ( “^.*.*{1}quot;, “\1”, $address ); return $address; } function smtp_debug($message) { if ($this->debug) { echo $message; } }}?>