remove duplicate key array from php [duplicate]

by

First you have to make multidimensional array instead of diffrent array

**Do as mentioned as below.**
$data = "Array
(
    [0] => Array
        (
            [distance] => 66.68
            [lat] => 51.8560591
            [long] => -2.2170209
            [ordNum] => 1/5938ebf2475fa
        )

    [1] => Array
        (
            [distance] => 66.68
            [lat] => 51.8560591
            [long] => -2.2170209
            [ordNum] => 1/5938e93c2080e
        )

    [2] => Array
        (
            [distance] => 123.93
            [lat] => 51.8560591
            [long] => -2.2170209
            [ordNum] => 1/5938ebf2475fa
        )

    [3] => Array
        (
            [distance] => 123.93
            [lat] => 51.8560591
            [long] => -2.2170209
            [ordNum] => 1/5938e93c2080e
        )

)";
echo '<pre/>';
$data1 = array( array('distance' => '123.93','lat' => '51.8560591','long' => '-2.2170209','ordNum' => '1/5938e93c2080e'),
                array('distance' => '123.93','lat' => '51.8560591','long' => '-2.2170209','ordNum' => '1/5938ebf2475fa'),
                array('distance' => '66.68','lat' => '51.8560591','long' => '-2.2170209','ordNum' => '1/5938e93c2080e'),
                array('distance' => '66.68','lat' => '51.8560591','long' => '-2.2170209','ordNum' => '1/5938ebf2475fa'));
$newArr = array();
foreach ($data1 as $val) {
    $newArr[$val['distance']] = $val;    
}
$array = array_values($newArr);
print_r($array);

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