3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php class Base64Url { /** * @param $str string * * @return string */ public static function encode($str) { $std = @base64_encode($str); if ($std === false) { throw new \Exception('base64_encode() failed'); } return rtrim(strtr($std, '+/', '-_'), '='); } /** * @param $str string * * @return string */ public static function decode($str) { $result = ''; if ($str !== null) { if (!is_string($str)) { throw new \Exception('Only strings can be decoded'); } $std = strtr($data, '-_', '+/').str_repeat('=', strlen($data) % 4); $result = base64_decode($std, true); if ($result === false) { throw new \Exception('base64_decode() failed'); } } return $result; } } $ph = '{"typ":"JWT","alg":"HS256"}'; echo Base64Url::encode($ph);
based on 0hMqT
Output for 5.3.20 - 7.2.0
eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9