"Undefined Offset 2" PHP 7.3.4-2/Debian 10

[boooyu44]

While trying to create invoice the library has problem parsing response. Looks critical as it triggers exception with "undefined offset 2"

More details and stack trace on the image

https://i.imgur.com/zScVIWg.png
https://i.imgur.com/4Cnmaab.png

PHP 7.3.4-2/Debian 10

[thes01]

The issue is in the regex pattern which does not accept the string starting with "HTTP 2 " (it expects HTTP number.number ...). Solved by (making a fork and) replacing the regex pattern like this in Bitpay/Client/Response.php

preg_match('/^HTTP\/(\d)\s(\d+)\s(.*)/', $lines[$i], $statusLine);