Warning: Undefined variable $con in /confereneceLV/universal_code/2014/dynamic/call.php on line 65
Fatal error: Uncaught TypeError: mysqli_query(): Argument #1 ($mysql) must be of type mysqli, null given in /confereneceLV/universal_code/2014/dynamic/call.php:65
Stack trace:
#0 /confereneceLV/universal_code/2014/dynamic/call.php(65): mysqli_query()
#1 /confereneceLV/universal_code/2014/scientific-program.php(3): include_once('...')
#2 {main}
thrown in /confereneceLV/universal_code/2014/dynamic/call.php on line 65