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.
<?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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