base64_encode

Encodes data with MIME base64 (PHP 3, PHP 4 )
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.

Example 993. 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() and » RFC 2045 section 6.8.

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