Difference in error reported for connections through HTTP tunneling with PHP v8.1 and above

[sibwy]

With PHP v8.0, select a database and execute a bad query i.e., "SELECT * FROM a_table_that_not_exist" returns the error "Error Code: 1146. Table '{database}'.'a_table_that_not_exist' doesn't exist"

Whereas with PHP v8.1, SQLyog displays an empty dialog and returns the error "Error Code: 1. Error in tunnelling. ..."

Reproducible case: Xampp PHPv8.0.28 and v8.1.6

The user report can be found in SF: 01001707