Hide file_get_contents warning

Hide warrning generated by file_get_contents function. This warning is
really nice way for directory traversal attack!
Signed-off-by: Neo2SHYAlien <neo2shyalien@gmail.com>
prevent directory listing

addition to the previous commit according the directory traversal attack
Signed-off-by: Neo2SHYAlien <neo2shyalien@gmail.com>