mailparse_msg_extract_part_file() does not support file-wrappers as it needs to be able to use seek() on the file.
(PECL mailparse >= 0.9.0)
mailparse_msg_extract_part_file — Extracts/decodes a message section
$mimemail, mixed $filename, callable $callbackfunc = ?): stringExtracts/decodes a message section from the supplied filename.
The contents of the section will be decoded according to their transfer encoding - base64, quoted-printable and uuencoded text are supported.
mimemail
A valid MIME resource, created with
mailparse_msg_create().
filenameCan be a file name or a valid stream resource.
callbackfunc
If set, this must be either a valid callback that will be passed the
extracted section, or null to make this function return the
extracted section.
If not specified, the contents will be sent to "stdout".
If callbackfunc is not null returns true on
success.
If callbackfunc is set to null, returns the
extracted section as a string.
Returns false on error.
mailparse_msg_extract_part_file() does not support file-wrappers as it needs to be able to use seek() on the file.Be aware of "corporate mails" or users who do not understand character encoding too deeply (or do not care). You may (as we did) face mail where the whole mail body is encoded used i.e. Latin2 (and iso-8859-2 is given in multipart's charset header) but at the same time the body also contains text footer with UTF-8 characters in it... Yes, fu*g Microsoft Exchange V6.5 frontent will show that fine on the screen, but if when receive it:
mailparse_msg_extract_part_file() - filter conversion failed. Input message is probably incorrectly encoded in ....
so be extra careful and deal with all the possible errors to avoid mail loss.