base64_encode
(PHP 3, PHP 4 >= 4.0b1)
base64_encode -- Encodes data with MIME base64
Description
string base64_encode (string data)
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.
---->From php.net
View the page here---> http://php.net/manual/en/function.base64-encode.php