Remove the all the duplicates from the salad list

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how to remove duplicates from the salad list?

What I have tried:

<pre>$veggies = array("Potato", "Cucumber", "Carrot", "Orange", "Green Beans", "Onion");
            $fruits  = array("Apple", "Banana", "Orange", "Pineapple", "Grapes", "Watermelon");
            $salad = array_unique(array_merge($veggies ,$fruits));
            print_r($salad);

Posted 3-Apr-18 1:01am

1234Amit

Updated 3-Apr-18 1:33am

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Maciej Los 3-Apr-18 7:12am

According to the documentation, an array_unique[^] method returns a new array without duplicate values. What do you need? What's wrong with your code?

2 solutions

Solution 1

Please, see my comment to the question...

According to the documentation, an array_unique[^] method returns a new array without duplicate values.

Posted 3-Apr-18 1:17am

Maciej Los

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Christiaan van Bergen · Accepted Answer · 2018-04-03T01:35:00

Your code already filters out all duplicates. If you would like case-insensitivity you can use this function

PHP

function array_iunique($array) {
    return array_intersect_key(
        $array,
        array_unique(array_map("StrToLower",$array))
    );
}

(Found this gem on Stackoverflow[^].)
Use this function in your code and change the "Orange" in the $veggies to "orange".

PHP

$veggies = array("Potato", "Cucumber", "Carrot", "orange", "Green Beans", "Onion");
$fruits  = array("Apple", "Banana", "Orange", "Pineapple", "Grapes", "Watermelon");
$salad = array_iunique(array_merge($veggies ,$fruits));
print_r($salad);

This outputs to

Array
(
    [0] => Potato
    [1] => Cucumber
    [2] => Carrot
    [3] => orange
    [4] => Green Beans
    [5] => Onion
    [6] => Apple
    [7] => Banana
    [9] => Pineapple
    [10] => Grapes
    [11] => Watermelon
)

The Orange appears only once in the result.