php写的发送附件的程序(二)-PHP教程,邮件处理

<?php
  class html_mime_mail{
  
  var $headers;
  var $body;
  var $multipart;
  var $mime;
  var $html;
  var $html_text;
  var $html_images = array();
  var $cids = array();
  var $do_html;
  var $parts = array();
  
  /***************************************
  ** constructor function. sets the headers
  ** if supplied.
  ***************************************/
  function html_mime_mail($headers = ){
  $this->headers = $headers;
  }
  
  /***************************************
  ** adds a html part to the mail.
  ** also replaces image names with
  ** content-ids.
  ***************************************/
  function add_html($html, $text){
  $this->do_html = 1;
  $this->html = $html;
  $this->html_text = $text;
  if(is_array($this->html_images) and count($this->html_images) > 0){
  for($i=0; $i<count($this->html_images); $i++){
  $this->html = ereg_replace($this->html_images[$i][name], cid:.$this->html_images[$i][cid], $this->html);
  }
  }
  }
  
  /***************************************
  ** builds html part of email.
  ***************************************/
  function build_html($orig_boundary){
  $sec_boundary = =_.md5(uniqid(time()));
  $thr_boundary = =_.md5(uniqid(time()));
  
  if(!is_array($this->html_images)){
  $this->multipart.= –.$orig_boundary.”\r\n”;
  $this->multipart.= content-type: multipart/alternative; boundary=”.$sec_boundary.”\”\r\n\r\n\r\n”;
  
  $this->multipart.= –.$sec_boundary.”\r\n”;
  $this->multipart.= content-type: text/plain.”\r\n”;
  $this->multipart.= content-transfer-encoding: 7bit.”\r\n\r\n”;
  $this->multipart.= $this->html_text.”\r\n\r\n”;
  
  $this->multipart.= –.$sec_boundary.”\r\n”;
  $this->multipart.= content-type: text/html.”\r\n”;
  $this->multipart.= content-transfer-encoding: 7bit.”\r\n\r\n”;
  $this->multipart.= $this->html.”\r\n\r\n”;
  $this->multipart.= –.$sec_boundary.”–\r\n\r\n”;
  }else{
  $this->multipart.= –.$orig_boundary.”\r\n”;
  $this->multipart.= content-type: multipart/related; boundary=”.$sec_boundary.”\”\r\n\r\n\r\n”;
  
  $this->multipart.= –.$sec_boundary.”\r\n”;
  $this->multipart.= content-type: multipart/alternative; boundary=”.$thr_boundary.”\”\r\n\r\n\r\n”;
  
  $this->multipart.= –.$thr_boundary.”\r\n”;
  $this->multipart.= content-type: text/plain.”\r\n”;
  $this->multipart.= content-transfer-encoding: 7bit.”\r\n\r\n”;
  $this->multipart.= $this->html_text.”\r\n\r\n”;
  
  $this->multipart.= –.$thr_boundary.”\r\n”;
  $this->multipart.= content-type: text/html.”\r\n”;
  $this->multipart.= content-transfer-encoding: 7bit.”\r\n\r\n”;
  $this->multipart.= $this->html.”\r\n\r\n”;
  $this->multipart.= –.$thr_boundary.”–\r\n\r\n”;
  
  for($i=0; $i<count($this->html_images); $i++){
  $this->multipart.= –.$sec_boundary.”\r\n”;
  $this->build_html_image($i);
  }
  
  $this->multipart.= “–“.$sec_boundary.”–\r\n\r\n”;
  }
  }
  /***************************************
  ** adds an image to the list of embedded
  ** images.
  ***************************************/
  function add_html_image($file, $name = , $c_type=application/octet-stream){
  $this->html_images[] = array( body => $file,
  name => $name,
  c_type => $c_type,
  cid => md5(uniqid(time())) );
  }
  
  
  /***************************************
  ** adds a file to the list of attachments.
  ***************************************/
  function add_attachment($file, $name = , $c_type=application/octet-stream){
  $this->parts[] = array( body => $file,
  name => $name,
  c_type => $c_type );
  }
  
  /***************************************
  ** builds an embedded image part of an
  ** html mail.
  ***************************************/
  function build_html_image($i){
  $this->multipart.= content-type: .$this->html_images[$i][c_type];
  
  if($this->html_images[$i][name] != ) $this->multipart .= ; name=”.$this->html_images[$i][name].”\”\r\n”;
  else $this->multipart .= “\r\n”;
  
  $this->multipart.= content-id: <.$this->html_images[$i][cid].”>\r\n”;
  $this->multipart.= content-transfer-encoding: base64.”\r\n\r\n”;
  $this->multipart.= chunk_split(base64_encode($this->html_images[$i][body])).”\r\n”;
  }
  
  /***************************************
  ** builds a single part of a multipart
  ** message.
  ***************************************/
  function build_part($i){
  $message_part = ;
  $message_part.= content-type: .$this->parts[$i][c_type];
  if($this->parts[$i][name] != )
  $message_part .= ; name=”.$this->parts[$i][name].”\”\r\n”;
  else
  $message_part .= “\r\n”;
  
  // determine content encoding.
  if($this->parts[$i][c_type] == text/plain){
  $message_part.= content-transfer-encoding: 7bit.”\r\n\r\n”;
  $message_part.= $this->parts[$i][body].”\r\n”;
  }else{
  $message_part.= content-transfer-encoding: base64.”\r\n”;
  $message_part.= content-disposition: attachment; filename=”.$this->parts[$i][name].”\”\r\n\r\n”;
  $message_part.= chunk_split(base64_encode($this->parts[$i][body])).”\r\n”;
  }
  
  return $message_part;
  }
  
  /***************************************
  ** builds the multipart message from the
  ** list ($this->parts).
  ***************************************/
  function build_message(){
  $boundary = =_.md5(uniqid(time()));
  
  $this->headers.= “mime-version: 1.0\r\n”;
  $this->headers.= “content-type: multipart/mixed; boundary=\””.$boundary.”\”\r\n”;
  $this->multipart = ;
  $this->multipart.= “this is a mime encoded message.\r\ncreated by html_mime_mail.class.\r\nsee http://www.heyes-computing.net/scripts/ for a copy.\r\n\r\n”;
  
  if(isset($this->do_html) and $this->do_html == 1) $this->build_html($boundary);
  if(isset($this->body) and $this->body != ) $this->parts[] = array(body => $this->body, name => , c_type => text/plain);
  
  for($i=(count($this->parts)-1); $i>=0; $i–){
  $this->multipart.= –.$boundary.”\r\n”.$this->build_part($i);
  }
  
  $this->mime = $this->multipart.”–“.$boundary.”–\r\n”;
  }
  
  /***************************************
  ** sends the mail.
  ***************************************/
  function send($to_name, $to_addr, $from_name, $from_addr, $subject = , $headers = ){
  
  if($to_name != ) $to = “.$to_name.” <.$to_addr.>;
  else $to = $to_addr;
  if($from_name != ) $from = “.$from_name.” <.$from_addr.>;
  else $from = $from_addr;
  $this->headers.= from: .$from.”\r\n”;
  //$this->headers.= $headers;
  mail($to, $subject, $this->mime, $this->headers);
  }
  
  /***************************************
  ** use this method to deliver using direct
  ** smtp connection. relies upon manuel lemos
  ** smtp mail delivery class available at:
  ** http://phpclasses.upperdesign.com
  **
  ** void smtp_send( string *name* of smtp object,
  ** string from address,
  ** array to addresses,
  ** array headers,
  ** string the body)
  ***************************************/
  function smtp_send($smtp_obj, $from_addr, $to_addr){
  global $$smtp_obj;
  $smtp_obj = $$smtp_obj;
  
  if(substr($this->headers, -2) == “\r\n”) $this->headers = substr($this->headers,0,-2);
  $this->headers = explode(“\r\n”, $this->headers);
  
  $smtp_obj->sendmessage($from_addr, $to_addr, $this->headers, $this->mime);
  }
  
  } // end of class.
  ?>