Donation.sol

pragma solidity >=0.5.1 <0.6.0;

contract Donation {
    address[] public givers;
    uint[] public values;
    address owner;

    constructor() public {
        owner = msg.sender;
    }

    modifier onlyowner {
        require(msg.sender == owner, 'sender should be owner');

        _;
    }

    event fundMoved(address _to, uint _amount);

    function donate() payable public {
        require(msg.value > 5, 'donation should be more than 5');
        addGiver(msg.value);
    }

    function moveFund(address payable _to, uint _amount) onlyowner public {
        uint balance = address(this).balance;
        if (_amount <= balance) {
            if (_to.send(balance)) {
                emit fundMoved(_to, _amount);
            } else {
               revert();
            }
        } else {
            revert();
        }
    }

    function addGiver(uint _amount) internal {
        givers.push(msg.sender);
        values.push(_amount);
    }
}