PHP url encoding and decoding (encryption/decryption)

    function base64_url_encode($input) {
            return rtrim(strtr(base64_encode($input), '+/', '-'), '=');
    }
    $code_urlfile = 'test1/test2/1234';
    echo base64_url_encode($code_urlfile);
    echo '';  // bbs.it-home.org
    $url = base64_url_encode($code_urlfile);
    echo base64_decode($url);
?>

结果：

dGVzdDEvdGVzdDIvMTIzNA test1/test2/1234