How to Remove Duplicate Array Values in PHP

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    A Sample PHP script to remove all the duplicate values from an array. A running example to remove duplicate array values using PHP

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    Use PHP array_unique() function to remove all the duplicate values form an array. This function takes input of an array and return another array without duplicate values.

    Here is an sample example:

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    <?php
    $input = array("a" => "green", "green", "blue", "b" => "green", "red");
    // Remove duplicate elements from an array
    $result = array_unique($array);
    print_r($result);
    ?>

    Expected output:

    Array
(
    [a] => green
    [1] => blue
    [2] => red
)

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