PHP

php base64

$base_string = base64_encode("your-string"); //for base64 encoding
echo base64_decode($base_string); //for base64 decoding

how do decode base64 php

base64_decode('base64-string-goes-here');

base64 enocode php

<?php
$str = 'VGhpcyBpcyBhbiBlbmNvZGVkIHN0cmluZw==';
echo base64_decode($str);
?>