base64_encode

Description

base64_encode() returns data encoded 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.

Example 1. base64_encode() example <?php $str = 'This is an encoded string'; echo base64_encode($str); ?> This example will produce: VGhpcyBpcyBhbiBlbmNvZGVkIHN0cmluZw==

See also base64_decode(), chunk_split(), convert_uuencode() and RFC 2045 section 6.8.