base64_encode Encodes data with MIME base64 &reftitle.description; stringbase64_encode stringdata Encodes the given data with base64. This encoding is designed to make binary data survive transport through transport layers that are not 8-bit clean, such as mail bodies. Base64-encoded data takes about 33% more space than the original data. &reftitle.parameters; data The data to encode. &reftitle.returnvalues; The encoded data, as a string. &reftitle.examples; ]]> &example.outputs; &reftitle.seealso; base64_decode chunk_split convert_uuencode RFC 2045 section 6.8