function Base64MimeHeaderEncoder::encodeString

Takes an unencoded string and produces a Base64 encoded string from it.

If the charset is iso-2022-jp, it uses mb_encode_mimeheader instead of default encodeString, otherwise pass to the parent method.

Overrides Base64Encoder::encodeString

File

vendor/symfony/mime/Encoder/Base64MimeHeaderEncoder.php, line 30

Class

Base64MimeHeaderEncoder

@author Chris Corbyn

Namespace

Symfony\Component\Mime\Encoder

Code

public function encodeString(string $string, ?string $charset = 'utf-8', int $firstLineOffset = 0, int $maxLineLength = 0) : string {
    if ('iso-2022-jp' === strtolower($charset)) {
        $old = mb_internal_encoding();
        mb_internal_encoding('utf-8');
        $newstring = mb_encode_mimeheader($string, 'iso-2022-jp', $this->getName(), "\r\n");
        mb_internal_encoding($old);
        return $newstring;
    }
    return parent::encodeString($string, $charset, $firstLineOffset, $maxLineLength);
}