Deprecated syntax cause PHP Error in Questions Import

[leozelion]

I get this error "Array and string offset access syntax with curly braces is no longer supported" in page moodle-url.com/question/bank/importquestions/import.php.
Moodle 4.1, PHP 8.1.
This syntax was deprecated since PHP 7.4.

format.php:381: } else if ($answertext{0} == '#') {
must be: } else if ($answertext[0] == '#') {

Please, fix it in repository for other moodlers ;)

[nbourre]

I have merged what seems to be a working branch. You can find my fork here.

https://github.com/nbourre/moodle-qformat_giftmedia