SQLSTATE[HY000]: General error: 1835 Malformed communication packet on LARAVEL

Question

Suddenly got

SQLSTATE[HY000]: General error: 1835 Malformed communication packet (SQL: select * from tb_users where (username =

Answer 1

All my Laravel apps running PHP 7.2 had this error but those running on PHP 7.3 did not. So I changed the PHP version to 7.3 and the problem was fixed. (Running Laravel 7)