How to compare 2 object values

Please solve the array in php: Compare 2 objects , if find same value in object then remove the object

Array
(
    [0] => Models\TripInvoice Object
        (
            [ID] => 1737
            [LAT] => 23.7525793
            [LON] => 90.3849885
            [TRIP_ORDER_INDEX] => 1
        )

    [1] => Models\TripInvoice Object
        (
            [ID] => 1739
            [LAT] => 23.7518355
            [LON] => 90.3849885
            [TRIP_ORDER_INDEX] => 2
        )

    [2] => Models\TripInvoice Object
        (
            [ID] => 1740
            [LAT] => 23.7518355
            [LON] => 90.3849885
            [TRIP_ORDER_INDEX] => 3
        )

    [3] => Models\TripInvoice Object
        (
            [ID] => 1741
            [LAT] => 23.7499659
            [LON] => 90.3891093
            [TRIP_ORDER_INDEX] => 4
        )

    [4] => Models\TripInvoice Object
        (
            [ID] => 1738
            [LAT] => 23.7499659
            [LON] => 90.3891093
            [TRIP_ORDER_INDEX] => 5
        )

    [5] => Models\TripInvoice Object
        (
            [ID] => 1743
            [LAT] => 23.7499659
            [LON] => 90.3891093
            [TRIP_ORDER_INDEX] => 6
        )

)

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