Send MIME messages in PHP (c)

MIME MIME class


with these basics, let's create and implement a MIME message class in PHP. In our PHP library function, we already have the code

The necessary tools for
.





MIME classes must be able to:





Add Accessories


encodes the attached data for each individual request


Create MIME segment/Header


generates a complete message containing a MIME segment/header


returns the entire message as a string


with a local mail handler (or choose to invoke an SMTP mail handler)


This class is called Mime_mail. We will discuss the methods of class and build bridges between the theoretical and practical gaps. (Reading suggestion: Luis


Argerich PHP object-oriented programming: A way to develop a large PHP project. Most of the comments have been removed for easy reading. A


some methods and class member variables are only used for internal processing and have been pointed out in the following comments (also in the original class file


pointed out).





<?php





class Mime_mail {


//Public:


var $to;


var $from;


var $subject;


var $body;


var $headers = "";


var $errstr = "";





var $base 64_func= '; If you do not specify the Base64 function to use PHP


var $qp _func = '; This is an empty





var $mailer = ""; Set it as a valid message object name





?>





here are some common variables (i.e., variables that can be manipulated directly in the script). Most of these variables are from the
.

Ming. The $headers contains the optional header information that you want to send to the message handler. $errstr


is a variable
containing a readable error string
The amount of
that can be used in the calling script.





$base 64_func and $qp_func are "function processors" that users can customize. By default, they are set to an empty string. For $base64_func, an empty string means we'll use PHP's built-in Base64_encode () function ... Yes Beautiful, isn't it! ）。


Quoted printable can be processed through $qp_func. There is no built-in quoted-printable in PHP


encoding function (however, install


with IMAP, you can use Imap_qprint (). In this article we will not discuss the Quoted_printable method.





<?php





//private:


var $mimeparts = array ();





?>




The
$mimeparts is an internal array that contains the independent MIME segments in the message information. Do not manipulate it and other private methods/variables outside of this class (or derived class).





<?php





//Constructor


function Mime_mail ($from = "", $to = "", $subject = "",


$body = "", $headers = "") {


$this->to = $to;


$this->from = $from;


$this->subject = $subject;


$this->body = $body;


if (Is_array ($headers)) {


if (sizeof ($headers) >1)


$headers =join (CRLF, $headers);


Else


$headers = $headers [0];


}


if ($from) {


$headers = preg_replace ("!" ( From:?. +? [


]?)! I ", ', $headers);


}


$this->headers = Chop ($headers);


$this->mimeparts[] = ""; Add position 0


return;


}





?>





we have the constructor of the object, which uses the "from" and "to" mail addresses, subject and message body and headers as parameters. For the
of the mail body

, you can give a normal email that you will probably enter. The last parameter is an optional (user-defined) header. For example, X-mailer:


mymailer_1.0. Note that $headers can be an array that contains the different headers that will be sent to the mail-sending program, or just some


the special head of the container. You cannot send from:
in the $headers parameter

Head, if it is found, this part will be automatically removed. You can be like the next


faces use multiple headers: Array ("x-mailer:mymailer_1.0",


"x-organization:phpbuilder.com").




The
$mimeparts is created with an empty item (index 0), which we'll see later.