I working on a function which filters a multi dimensional array, if the successive arrays have same value, I need to remove the arrays in between and get only the first and last of the successive arrays with duplicate values.

I cant figure out how to do this.

Hope you can help me.

Thanks.

**SAMPLE CODE**

```
function removeDuplicates($array){
    $result = [];
    $count = 0;
    $firstValue = null;

    for ($i = 0; $i < count($array); $i++) {

        if($array[$i]['id'] == firstValue){

            $result[] = $array[$i]);

        }else{

            // do action

        }

    }

    return $array;

}

```

**Sample Array**

```
Array ( 
    [0] => Array ( 
        [key] => 0 
        [value] => 25 
        ) 
    [1] => Array ( 
        [key] => 1 
        [value] => 25 
        ) 
    [2] => Array ( 
        [key] => 2 
        [value] => 25 
        ) 
    [3] => Array ( 
        [key] => 3 
        [value] => 33 
        )    
    [4] => Array ( 
        [key] => 4 
        [value] => 45 
        ) 
    [5] => Array ( 
        [key] => 5 
        [value] => 66 
        ) 
    [6] => Array ( 
        [key] => 6 
        [value] => 66 
        ) 
    [7] => Array ( 
        [key] => 7 
        [value] => 66 
        ) 
    [8] => Array ( 
        [key] => 8 
        [value] => 66 
        ) 
    [9] => Array ( 
        [key] => 9 
        [value] => 55 
        ) 
    )

```

Here the first 3 arrays have same values (25), I need to remove the 2nd array and retain the 1st and 3rd, also with the 6th to 9th only retain the 6th and 9th array.

**Expected Result**

```
Array ( 
    [0] => Array ( 
        [key] => 0 
        [value] => 25 
        )  
    [2] => Array ( 
        [key] => 2 
        [value] => 25 
        ) 
    [3] => Array ( 
        [key] => 3 
        [value] => 33 
        )    
    [4] => Array ( 
        [key] => 4 
        [value] => 45 
        ) 
    [5] => Array ( 
        [key] => 5 
        [value] => 66 
        ) 
    [8] => Array ( 
        [key] => 8 
        [value] => 66 
        ) 
    [9] => Array ( 
        [key] => 9 
        [value] => 55 
        ) 
    )

```