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(PHP 3, PHP 4, PHP 5)

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.

Example 1. base64_encode() example

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

This example will produce:

VGhpcyBpcyBhbiBlbmNvZGVkIHN0cmluZw==

Related Function(s)

base64_decode()

chunk_split()

convert_uuencode()