(PHP 4, PHP 5, PHP 7, PHP 8)
imap_8bit — Convert an 8bit string to a quoted-printable string
$string
): string|falseConvert an 8bit string to a quoted-printable string (according to » RFC2045, section 6.7).
string
The 8bit string to convert
Returns a quoted-printable string, 或者在失败时返回 false
.