How to remove all same values from an array in php?

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// Define an array with duplicate values
$array = array(1, 2, 2, 3, 4, 4, 5);

// Remove duplicate values from the array
$uniqueArray = array_unique($array);

// Print the unique array
print_r($uniqueArray);

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Array
(
    [0] => 1
    [1] => 2
    [3] => 3
    [5] => 4
    [6] => 5
)