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- <?php
- declare(strict_types=1);
- /**
- * [base64url_encode base64 url encode data.]
- *
- * @param string $data Data to encode
- *
- * @return string|bool Encoded Data. False, if data couldn't be encoded.
- */
- function base64url_encode(string $data) {
- $b64 = base64_encode($data);
- if ($b64 === false) return false;
- $url = strtr($b64, '+/', '-_');
- return rtrim($url, '=');
- }
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