PHP IMAP-Extension get clean Message-Body - php

Question

I'm just experimenting a little with the IMAP-Extension for PHP and I build the connection using an object like this:
function __construct($user, $pass, $server = 'my.mailserver.ch', $port = 143) {
$this->server = $server;
$this->user = $user;
$this->pass = $pass;
$this->port = $port;
if($this->conn = imap_open('{'.$this->server.'}', $this->user, $this->pass)){
$this->success = 1;
}else{
$this->success = -1;
}
$this->inbox();
}
I then use the following function to get the neccessary data from my mails.
(Which works)
function inbox() {
$this->msg_cnt = imap_num_msg($this->conn);
$in = array();
for($i = 1; $i <= $this->msg_cnt; $i++) {
$in[] = array(
'index' => $i,
'header' => imap_headerinfo($this->conn, $i),
'body' => imap_fetchbody($this->conn, $i),
'structure' => imap_fetchstructure($this->conn, $i)
);
}
$this->inbox = $in;
}
But if I now look into the body of the message, I get multiple different things besides the message, like:
--001a113ec946082fc705210e59c7 Content-Type: multipart/alternative; boundary=001a113ec946082fc005210e59c5 --001a113ec946082fc005210e59c5 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding
And so on. I checked for ways to get a clean body from that "multipart/alternative" but I couldn't find anything that helped me. Also there are several different Content-Types in the same body.
How do I get the clean body of the message, and do I have to handle it differently for differen content-types?
Thank you for your help.