base64_encode

Encodes data with MIME base64

&reftitle.description; `string` `base64_encode` `string` `string`

Encodes the given `string` 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;

`string`

- The data to encode.

&reftitle.returnvalues;

The encoded data, as a string.

&reftitle.examples;

### `base64_encode` example

    <?php
    $str = 'This is an encoded string';
    echo base64_encode($str);
    ?>

&example.outputs;

    VGhpcyBpcyBhbiBlbmNvZGVkIHN0cmluZw==

&reftitle.seealso;

- `base64_decode`
- `chunk_split`
- `convert_uuencode`
- RFC 2045 section 6.8