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PHP教程.应用实例10 

作者:佚名   来源:本站教程   点击:   日期:2007-01-11
php写的发送附件的程序(二)
<?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-id's.
***************************************/
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 != '')

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