array unique php

1<?php
2$fruits_list = array('Orange',  'Apple', ' Banana', 'Cherry', ' Banana');
3$result = array_unique($fruits_list);
4print_r($result);
5?>
6  
7Output:
8
9Array ( [0] => Orange [1] => Apple [2] => Banana [3] => Cherry ) 

1
2<?php
3$input = array("a" => "green", "red", "b" => "green", "blue", "red");
4$result = array_unique($input);
5print_r($result);
6?>
7
8Array
9(
10    [a] => green
11    [0] => red
12    [1] => blue
13)

1<?php
2    // Syntax: array_unique(array $array, int $flags = SORT_STRING): array
3    // Desc: Removes duplicate values from an array
4    $arr = Array("red", "red", "green", "blue", "blue", "white");
5    echo "<pre>";
6    print_r($arr);
7    echo "</pre> <br><br>";
8    
9    $arrUnique = array_unique($arr);
10
11    echo "<pre>";
12    print_r($arrUnique);
13    echo "</pre> <br><br>";
14
15    /* -------- output -----------
16    Array
17    (
18        [0] => red
19        [1] => red
20        [2] => green
21        [3] => blue
22        [4] => blue
23        [5] => white
24    )
25    
26    Array
27    (
28        [0] => red
29        [2] => green
30        [3] => blue
31        [5] => white
32    )
33    */
34?>

1$counts = array_count_values($array);
2            $duplicate_title  = array_filter($array, function ($value) use ($counts) {
3                return $counts[$value] > 1;
4            });

1let chars = ['A', 'B', 'A', 'C', 'B'];
2let uniqueChars = [...new Set(chars)];
3
4console.log(uniqueChars);
5

1$input = array_map("unserialize", array_unique(array_map("serialize", $input)));