( ! ) Warning: include(test-connection.php): Failed to open stream: No such file or directory in C:\wamp64\www\licoreria\logic\compras_todo_en_uno.php on line 5
Call Stack
#	Time	Memory	Function	Location
1	0.0149	473040	{main}( )	...\compras_todo_en_uno.php:0

( ! ) Warning: include(): Failed opening 'test-connection.php' for inclusion (include_path='.;C:\php\pear') in C:\wamp64\www\licoreria\logic\compras_todo_en_uno.php on line 5
Call Stack
#	Time	Memory	Function	Location
1	0.0149	473040	{main}( )	...\compras_todo_en_uno.php:0

( ! ) Warning: Undefined variable $conn in C:\wamp64\www\licoreria\logic\compras_todo_en_uno.php on line 105
Call Stack
#	Time	Memory	Function	Location
1	0.0149	473040	{main}( )	...\compras_todo_en_uno.php:0

( ! ) Fatal error: Uncaught Error: Call to a member function prepare() on null in C:\wamp64\www\licoreria\logic\compras_todo_en_uno.php on line 105
( ! ) Error: Call to a member function prepare() on null in C:\wamp64\www\licoreria\logic\compras_todo_en_uno.php on line 105
Call Stack
#	Time	Memory	Function	Location
1	0.0149	473040	{main}( )	...\compras_todo_en_uno.php:0