php实现的发送带附件邮件类实例

本文实例讲述了php实现的发送带附件邮件类的方法，是一个非常实用的功能。分享给大家供大家参考。具体方法如下：
emailclass.php类文件如下：

<? class CMailFile { var $subject;var $addr_to;var $text_body;var $text_encoded;var $mime_headers;var $mime_boundary = "--==================_846811060==_";var $smtp_headers; function CMailFile（$subject,$to,$from,$msg,$filename,$downfilename,$mimetype = "application/octet-stream",$mime_filename = false） {$this->subject = $subject; $this->addr_to = $to; $this->smtp_headers = $this->write_smtpheaders（$from）; $this->text_body = $this->write_body（$msg）; $this->text_encoded = $this->attach_file（$filename,$downfilename,$mimetype,$mime_filename）; $this->mime_headers = $this->write_mimeheaders（$filename, $mime_filename）; } function attach_file（$filename,$downfilename,$mimetype,$mime_filename） { $encoded = $this->encode_file（$filename）; if （$mime_filename） $filename = $mime_filename; $out = "--" . $this->mime_boundary . "
"; $out = $out . "Content-type: " . $mimetype . "; name="$filename";
"; $out = $out . "Content-Transfer-Encoding: base64
"; $out = $out . "Content-disposition: attachment; filename="$downfilename"

"; $out = $out . $encoded . "
"; $out = $out . "--" . $this->mime_boundary . "--" . "
"; return $out; } function encode_file（$sourcefile） {if （is_readable（$sourcefile）） {$fd = fopen（$sourcefile, "r"）;$contents = fread（$fd, filesize（$sourcefile））;$encoded = chunk_split（base64_encode（$contents））;fclose（$fd）;}return $encoded;} function sendfile（） { $headers = $this->smtp_headers . $this->mime_headers;$message = $this->text_body . $this->text_encoded;mail（$this->addr_to,$this->subject,$message,$headers）;} function write_body（$msgtext） {$out = "--" . $this->mime_boundary . "
";$out = $out . "Content-Type: text/plain; charset="us-ascii"

";$out = $out . $msgtext . "
";return $out;} function write_mimeheaders（$filename, $mime_filename） {if （$mime_filename） $filename = $mime_filename;$out = "MIME-version: 1.0
";$out = $out . "Content-type: multipart/mixed; ";$out = $out . "boundary="$this->mime_boundary"
";$out = $out . "Content-transfer-encoding: 7BIT
";$out = $out . "X-attachments: $filename;

";return $out;} function write_smtpheaders（$addr_from） {$out = "From: $addr_from
";$out = $out . "Reply-To: $addr_from
";$out = $out . "X-Mailer: PHP3
";$out = $out . "X-Sender: $addr_from
";return $out;}} /*用法 - 例如:mimetype 为 "image/gif" $mailfile = new CMailFile（$subject,$sendto,$replyto,$message,$filename,$mimetype）; $mailfile->sendfile（）;$subject -- 主题 $sendto -- 收信人地址 $replyto -- 回复地址 $message -- 信件内容 $filename -- 附件文件名 $downfilename -- 下載的文件名 $mimetype -- mime类型 */ ?>

Demo示例文件如下：

<?php require_once（"emailclass.php"）;//发送邮件//主題 $subject = "test send email";//收件人 $sendto = "abc@163.com";//發件人 $replyto = "cdf@163.com";//內容 $message = "test send email content";//附件 $filename = "test.jpg";//附件類別 $mimetype = "image/jpeg";$mailfile = new CMailFile（$subject,$sendto,$replyto,$message,$filename,$excelname,$mimetype）;$mailfile->sendfile（）; ?>

相信本文所述对大家php程序设计的学习有一定的借鉴价值。