我下面有用于邮件附件的代码，但是它不起作用，不知道为什么会发生。
function mail_attachment($filename, $path, $mailto, $from_mail, $subject, $message){
$uid = md5(uniqid(time()));
$mime_boundary = "==Multipart_Boundary_x{$uid}x";
$header = "From: <".$from_mail.">\r\n";
$header .= "MIME-Version: 1.0\r\n";
$header .= "Content-Type: multipart/mixed; boundary=\"".$mime_boundary."\"\r\n\r\n";
$header .= "This is a multi-part message in MIME format.\r\n";
$header .= "--".$mime_boundary."\r\n";
$header .= "Content-type:text/html; charset=iso-8859-1\r\n";
$header .= "Content-Transfer-Encoding: 7bit\r\n\r\n";
$header .= nl2br($message)."\r\n\r\n";
$header .= "--".$mime_boundary."\r\n";
foreach($filename as $k=>$v){
$file = $path.$v;
$file_size = filesize($file);
$handle = fopen($file, "r");
$content = fread($handle, $file_size);
fclose($handle);
$content = chunk_split(base64_encode($content));
$header .= "Content-Type: application/octet-stream; name=\"".$v."\"\r\n"; // use different content types here
$header .= "Content-Transfer-Encoding: base64\r\n";
$header .= "Content-Disposition: attachment; filename=\"".$v."\"\r\n\r\n";
$header .= $content."\r\n\r\n";
$header .= "--".$mime_boundary."--"."\r\n";
}
if (mail($mailto, $subject, "", $header)) {
//echo "mail send ... OK"; // or use booleans here
return true;
} else {
//echo "mail send ... ERROR!";
return false;
}
}
$path='upload/';
$send_email = mail_attachment($files, $path, $to, "roxmorphy26@gmail", $subject, $message);
//mail($to,$subject,$message,$headers);
if($send_email){ echo 'done';} else {echo 'not';}
但它会给出类似错误的警告-警告：mail（）：在Additional_header中发现了多个或格式错误的换行符
请帮忙。
<?php
define("LIBR", "\n"); // use a "\r\n" if you have problems
define("PRIORITY", 3); // 3 = normal, 2 = high, 4 = low
define("TRANS_ENC", "7bit");
define("ENCODING", "iso-8859-1");
class attach_mailer {
var $from_name;
var $from_mail;
var $mail_to;
var $mail_cc;
var $mail_bcc;
var $webmaster_email = "[email protected]";
var $mail_headers;
var $mail_subject;
var $text_body = "";
var $html_body = "";
var $valid_mail_adresses; // boolean is true if all mail(to) adresses are valid
var $uid; // the unique value for the mail boundry
var $alternative_uid; // the unique value for the mail boundry
var $related_uid; // the unique value for the mail boundry
var $html_images = array();
var $att_files = array();
var $msg = array();
// functions inside this constructor
// - validation of e-mail adresses
// - setting mail variables
// - setting boolean $valid_mail_adresses
function attach_mailer($name = "", $from, $to, $cc = "", $bcc = "", $subject = "") {
$this->valid_mail_adresses = true;
if (!$this->check_mail_address($to)) {
$this->msg[] = "Error, the \"mailto\" address is empty or not valid.";
$this->valid_mail_adresses = false;
}
if (!$this->check_mail_address($from)) {
$this->msg[] = "Error, the \"from\" address is empty or not valid.";
$this->valid_mail_adresses = false;
}
if ($cc != "") {
if (!$this->check_mail_address($cc)) {
$this->msg[] = "Error, the \"Cc\" address is not valid.";
$this->valid_mail_adresses = false;
}
}
if ($bcc != "") {
if (!$this->check_mail_address($bcc)) {
$this->msg[] = "Error, the \"Bcc\" address is not valid.";
$this->valid_mail_adresses = false;
}
}
if ($this->valid_mail_adresses) {
$this->from_name = $this->strip_line_breaks($name);
$this->from_mail = $this->strip_line_breaks($from);
$this->mail_to = $this->strip_line_breaks($to);
$this->mail_cc = $this->strip_line_breaks($cc);
$this->mail_bcc = $this->strip_line_breaks($bcc);
$this->mail_subject = $this->strip_line_breaks($subject);
} else {
return;
}
}
function get_msg_str() {
$messages = "";
foreach($this->msg as $val) {
$messages .= $val."<br />\n";
}
return $messages;
}
// use this to prent formmail spamming
function strip_line_breaks($val) {
$val = preg_replace("/([\r\n])/", "", $val);
return $val;
}
function check_mail_address($mail_address) {
$pattern = "/^[\w-]+(\.[\w-]+)*@([0-9a-z][0-9a-z-]*[0-9a-z]\.)+([a-z]{2,4})$/i";
if (preg_match($pattern, $mail_address)) {
if (function_exists("checkdnsrr")) {
$parts = explode("@", $mail_address);
if (checkdnsrr($parts[1], "MX")){
return true;
} else {
return false;
}
} else {
// on windows hosts is only a limited e-mail address validation possible
return true;
}
} else {
return false;
}
}
function get_file_data($filepath) {
if (file_exists($filepath)) {
if (!$str = file_get_contents($filepath)) {
$this->msg[] = "Error while opening attachment \"".basename($filepath)."\"";
} else {
return $str;
}
} else {
$this->msg[] = "Error, the file \"".basename($filepath)."\" does not exist.";
return;
}
}
// use for $dispo "attachment" or "inline" (f.e. example images inside a html mail
function add_attach_file($file, $encoding = "base64", $dispo = "attachment", $type = "application/octet-stream") {
$file_str = $this->get_file_data($file);
if ($file_str == "") {
return;
} else {
if ($encoding == "base64") $file_str = base64_encode($file_str);
$this->att_files[] = array(
"data"=>chunk_split($file_str),
"name"=>basename($file),
"cont_type"=>$type,
"trans_enc"=>$encoding,
"disposition"=>$dispo);
}
}
function add_html_image($img_name) {
$file_str = $this->get_file_data($img_name);
$img_dim = getimagesize($img_name);
if ($file_str == "") {
return;
} else {
$this->html_images[] = array(
"data"=>chunk_split(base64_encode($file_str)),
"name"=>basename($img_name),
"cont_type"=>$img_dim['mime'],
"cid"=>md5(uniqid(time()))."@".$_SERVER['SERVER_NAME']);
}
}
function create_stand_headers() {
if ($this->from_name != "") {
$headers = "From: ".$this->from_name." <".$this->from_mail.">".LIBR;
$headers .= "Reply-To: ".$this->from_name." <".$this->from_mail.">".LIBR;
} else {
$headers = "From: ".$this->from_mail.LIBR;
$headers .= "Reply-To: ".$this->from_mail.LIBR;
}
if ($this->mail_cc != "") $headers .= "Cc: ".$this->mail_cc.LIBR;
if ($this->mail_bcc != "") $headers .= "Bcc: ".$this->mail_bcc.LIBR;
$headers .= sprintf("Message-ID: <%s@%s>%s", md5(uniqid(time())), $_SERVER['SERVER_NAME'], LIBR);
$headers .= "X-Priority: ".PRIORITY.LIBR;
$headers .= "X-Mailer: Attachment Mailer [version 1.2]".LIBR;
$headers .= "MIME-Version: 1.0".LIBR;
return $headers;
}
function create_html_image($img_array) {
$img = "Content-Type: ".$img_array['cont_type'].";".LIBR.chr(9)." name=\"".$img_array['name']."\"".LIBR;
$img .= "Content-Transfer-Encoding: base64".LIBR;
$img .= "Content-ID: <image".$img_array['cid'].">".LIBR;
$img .= "Content-Disposition: inline;".LIBR.chr(9)." filename=\"".$img_array['name']."\"".LIBR.LIBR;
$img .= $img_array['data'];
return $img;
}
function create_attachment($data_array) {
$att = "Content-Type: ".$data_array['cont_type'].";".LIBR.chr(9)." name=\"".$data_array['name']."\"".LIBR;
$att .= "Content-Transfer-Encoding: ".$data_array['trans_enc'].LIBR;
$att .= "Content-Disposition: ".$data_array['disposition'].";".LIBR.chr(9)." filename=\"".$data_array['name']."\"".LIBR.LIBR;
$att .= $data_array['data'];
return $att;
}
function create_html_body() {
$html = "Content-Type: text/html; charset=".ENCODING.LIBR;
$html .= "Content-Transfer-Encoding: ".TRANS_ENC.LIBR.LIBR;
foreach ($this->html_images as $img) {
$this->html_body = str_replace($img['name'], "cid:image".$img['cid'], $this->html_body);
}
$html .= $this->html_body;
return $html.LIBR.LIBR;
}
function build_message() {
$this->headers = $this->create_stand_headers();
$msg = "";
$is_html = ($this->html_body != "") ? true : false;
$is_attachment = (count($this->att_files) > 0) ? true : false;
$is_images = (count($this->html_images) > 0) ? true : false;
if ($is_attachment) {
$this->uid = md5(uniqid(time()));
$this->headers .= "Content-Type: multipart/mixed;".LIBR.chr(9)." boundary=\"".$this->uid."\"".LIBR.LIBR;
$this->headers .= "This is a multi-part message in MIME format.".LIBR;
if (!$is_html) {
$msg .= "--".$this->uid.LIBR;
} else {
$this->headers .= "--".$this->uid.LIBR;
}
}
if ($is_html) {
$this->alternative_uid = md5(uniqid(time()));
$this->headers .= "Content-Type: multipart/alternative;".LIBR.chr(9)." boundary=\"".$this->alternative_uid."\"".LIBR.LIBR;
if (!$is_attachment) {
$this->headers .= "This is a multi-part message in MIME format.".LIBR;
}
$msg .= LIBR."--".$this->alternative_uid.LIBR;
}
$body_head = "Content-Type: text/plain; charset=".ENCODING."; format=flowed".LIBR;
$body_head .= "Content-Transfer-Encoding: ".TRANS_ENC.LIBR.LIBR;
if (!$is_attachment && !$is_html) {
$this->headers .= $body_head;
} else {
$msg .= $body_head;
}
$msg .= trim($this->text_body).LIBR.LIBR;
if ($is_html) {
$msg .= "--".$this->alternative_uid.LIBR;
if ($is_images) {
$this->related_uid = md5(uniqid(time()));
$msg .= "Content-Type: multipart/related;".LIBR.chr(9)." boundary=\"".$this->related_uid."\"".LIBR.LIBR.LIBR;
$msg .= "--".$this->related_uid.LIBR;
$msg .= $this->create_html_body();
foreach ($this->html_images as $img) {
$msg .= "--".$this->related_uid.LIBR;
$msg .= $this->create_html_image($img);
}
$msg .= LIBR."--".$this->related_uid."--";
} else {
$msg .= $this->create_html_body();
}
$msg .= LIBR.LIBR."--".$this->alternative_uid."--".LIBR.LIBR;
}
if ($is_attachment) {
foreach ($this->att_files as $att) {
$msg .= "--".$this->uid.LIBR;
$msg .= $this->create_attachment($att);
}
$msg .= "--".$this->uid."--";
}
return $msg;
}
function process_mail() {
if (!$this->valid_mail_adresses) return;
if (mail($this->mail_to, $this->mail_subject, $this->build_message(), $this->headers, "-f".$this->webmaster_email)) {
$this->msg[] = "Your mail is succesfully submitted.";
return true;
} else {
$this->msg[] = "Error while sending you mail.";
return false;
}
}
}
$test = new attach_mailer($name = "Olaf", $from = "[email protected]", $to = "[email protected]", $cc = "", $bcc = "", $subject = "Test text email with attachments");
$test->text_body = "...Some body text\n\n the admin";
$test->add_attach_file("uploads/admin_doc.docx");
//$test->add_attach_file("ip2nation.zip");
$test->process_mail();
echo $test->get_msg_str();
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