Array unique php

Array_unique

<?php
$input = array("a" => "green", "red", "b" => "green", "blue", "red");
$result = array_unique($input);
print_r($result);
?>

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

Source: php.net

Array unique php

<?php
    // Syntax: array_unique(array $array, int $flags = SORT_STRING): array
    // Desc: Removes duplicate values from an array
    $arr = Array("red", "red", "green", "blue", "blue", "white");
    echo "<pre>";
    print_r($arr);
    echo "</pre> <br><br>";
    
    $arrUnique = array_unique($arr);

    echo "<pre>";
    print_r($arrUnique);
    echo "</pre> <br><br>";

    /* -------- output -----------
    Array
    (
        [0] => red
        [1] => red
        [2] => green
        [3] => blue
        [4] => blue
        [5] => white
    )
    
    Array
    (
        [0] => red
        [2] => green
        [3] => blue
        [5] => white
    )
    */
?>

Check duplicate data in array php

$counts = array_count_values($array);
            $duplicate_title  = array_filter($array, function ($value) use ($counts) {
                return $counts[$value] > 1;
            });

Unique key value array php

$input = array_map("unserialize", array_unique(array_map("serialize", $input)));

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