This code allows to remove all duplicate elements from an array using PHP array_unique() function.

gistfile1.php

    <?php
/* Source: http://www.apphp.com/index.php?snippet=php-remove-duplicates-in-array */
    $input = array("a"=>"apple", "pear", "b"=>"apple", "orange", "avocado", "banana");
    print_r($input);
    $result = array_unique($input);
    print_r($result);
    ?>