How to extract only HTML from imap_body result

Question

I want to extract only the HTML content from a imap_body result. The imap_body give a verbatim copy of the mail.

Answer 1

I found a solution:

function getBody($uid, $imap)
{
    $body = $this->get_part($imap, $uid, "TEXT/HTML");
    // if HTML body is empty, try getting text body
    if ($body == "") {
        $body = $this->get_part($imap, $uid, "TEXT/PLAIN");
    }
    return $body;
}

function get_part($imap, $uid, $mimetype, $structure = false, $partNumber = false)
{
    if (!$structure) {
        $structure = imap_fetchstructure($imap, $uid, FT_UID);
    }
    if ($structure) {
        if ($mimetype == $this->get_mime_type($structure)) {
            if (!$partNumber) {
                $partNumber = 1;
            }
            $text = imap_fetchbody($imap, $uid, $partNumber, FT_UID);
            switch ($structure->encoding) {
                case 3:
                    return imap_base64($text);
                case 4:
                    return imap_qprint($text);
                default:
                    return $text;
            }
        }

        // multipart
        if ($structure->type == 1) {
            foreach ($structure->parts as $index => $subStruct) {
                $prefix = "";
                if ($partNumber) {
                    $prefix = $partNumber . ".";
                }
                $data = $this->get_part($imap, $uid, $mimetype, $subStruct, $prefix . ($index + 1));
                if ($data) {
                    return $data;
                }
            }
        }
    }
    return false;
}

function get_mime_type($structure)
{
    $primaryMimetype = ["TEXT", "MULTIPART", "MESSAGE", "APPLICATION", "AUDIO", "IMAGE", "VIDEO", "OTHER"];

    if ($structure->subtype) {
        return $primaryMimetype[(int)$structure->type] . "/" . $structure->subtype;
    }
    return "TEXT/PLAIN";
}

Answer 2

http://php.net/manual/en/function.imap-fetchbody.php

Parameter 3, "the section" is as follows:

The part number. It is a string of integers delimited by period which index into a body part list as per the IMAP4 specification

(empty) - Entire message
0 - Message header
1 - MULTIPART/ALTERNATIVE
1.1 - TEXT/PLAIN
1.2 - TEXT/HTML
2 - file.ext

Therefore, to grab the HTML part of the mail, you would have to use the 1.2 option as the third parameter. Like so:

$message = imap_fetchbody($inbox, $number, 1.2);