Warning: Undefined array key "a" in C:\xampp\htdocs\elderaid_api\chat\get_messages.php on line 3

Warning: Undefined array key "b" in C:\xampp\htdocs\elderaid_api\chat\get_messages.php on line 3

Warning: Undefined array key "b" in C:\xampp\htdocs\elderaid_api\chat\get_messages.php on line 3

Warning: Undefined array key "a" in C:\xampp\htdocs\elderaid_api\chat\get_messages.php on line 3

Fatal error: Uncaught Error: Call to a member function fetch_all() on bool in C:\xampp\htdocs\elderaid_api\chat\get_messages.php:4 Stack trace: #0 {main} thrown in C:\xampp\htdocs\elderaid_api\chat\get_messages.php on line 4