( ! ) Warning: count(): Parameter must be an array or an object that implements Countable in C:\Apache24\htdocs\book.php on line 15
Call Stack
#	Time	Memory	Function	Location
1	0.0006	433920	{main}( )	...\book.php:0

( ! ) Warning: Invalid argument supplied for foreach() in C:\Apache24\htdocs\book.php on line 20
Call Stack
#	Time	Memory	Function	Location
1	0.0006	433920	{main}( )	...\book.php:0