Support CURLOPT_ECH

Description

Not sure, if this is really a bug. It is more like a question if this is a bug

The following code:

<?php
$curl = curl_init('https://php.net');
curl_exec($curl);

$error = curl_getinfo($curl, CURLINFO_OS_ERRNO);
echo $error.' "'.curl_strerror($error).'"'.PHP_EOL;

curl_close($curl);

Resulted in this output (with cURL >=8.10):

101 "ECH attempted but failed"

But I expected this output instead (with cURL <8.10):

0 "No error"

Seems like a cURL issue and not an issue with the wrapper, but cURL provides the CURLOPT_ECH to configure it, which the PHP wrapper does not. So I am a bit stuck. Do I have to treat errors differently depending on the cURL version I use or is there any possibility to configure the behavior here?
The CURLOPT_ECH documentation (see above) says the default setting is off, which does not seem to be true here. Is this an issue with cURL or with the wrapper changing the default somehow?

PHP Version

PHP 8.3.12

Operating System

No response

まず、PHP cURL wrapper による libcurl オプションの処理と CURLOPT_ECH のドキュメントを確認し、次に、指定された cURL バージョン全体で報告されている CURLINFO_OS_ERRNO の動作を再現します。libcurl のデフォルト値を変更せずに、wrapper がこのオプションを公開できるかどうかを判断します。ECH の動作を要求どおり設定でき、issue のバージョン依存のエラー動作が適切なテストでカバーされれば完了です。