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(PECL mailparse >= 0.9.0)
mailparse_msg_extract_part_file — Extracts/decodes a message section
$mimemail, mixed $filename, callable $callbackfunc = ?): string
Extracts/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().
filename
Can 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.
