php-simple-jwt/src/JWTUtil.php

<?php

namespace NoccyLabs\SimpleJWT;


class JWTUtil
{
    public static function encode($data) {
        return rtrim(str_replace(['+', '/'], ['-', '_'], base64_encode($data)), "=");
    }
    
    public static function decode($data) {
        return base64_decode(str_replace(['-', '_'], ['+', '/'], $data));
    }

}