A turn-based strategy game has a grid with water and land. The grid contains a true value where it's water and false where it's land.

The player controls a boat unit with a particular movement pattern. It can only move to fixed destinations from its current position as shown in the video below:

The boat can only move in a direct path through water to the possible destinations, so a destination will become unreachable if there is land in the way.

Implement the canTravelTo function, that checks whether a destination is reachable by the boat. It should return true for destinations that are reachable according to the pattern above, and false for unreachable or out of bounds destinations which are outside the grid.

For example, consider the following code:

$gameMatrix = [
    [false, true,  true,  false, false, false],
    [true,  true,  true,  false, false, false],
    [true,  true,  true,  true,  true,  true],
    [false, true,  true,  false, true,  true],
    [false, true,  true,  true,  false, true],
    [false, false, false, false, false, false],
  ];
  

echo canTravelTo($gameMatrix, 3, 2, 2, 2) ? "true\n" : "false\n"; // true, Valid move
echo canTravelTo($gameMatrix, 3, 2, 3, 4) ? "true\n" : "false\n"; // false, Can't travel through land
echo canTravelTo($gameMatrix, 3, 2, 6, 2) ? "true\n" : "false\n"; // false, Out of bounds

The following image shows valid and invalid destinations when the boat is in the position (3, 2):

Terrain movement