array(4) { ["one"]=> int(1) ["two"]=> int(2) ["three"]=> int(3) ["four"]=> int(4) } array(3) { ["one"]=> int(1) ["two"]=> int(2) ["four"]=> int(4) } array(4) { ["one"]=> int(1) ["two"]=> int(2) ["four"]=> int(4) ["five"]=> int(5) }