imap_8bit Convert an 8bit string to a quoted-printable string &reftitle.description; stringimap_8bit stringstring Convert an 8bit string to a quoted-printable string (according to RFC2045, section 6.7). &reftitle.parameters; string The 8bit string to convert &reftitle.returnvalues; Returns a quoted-printable string. &reftitle.seealso; imap_qprint