PHP

php get unique values by key from array

$array = array(
	array('group' => 'test', 'name' => 'Jane'),
    array('group' => 'test', 'name' => 'John'),
    array('group' => 'admin', 'name' => 'superadmin')
);
$unique_values_by_key = array_unique(array_column($array, 'group'));

array unique php

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

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
    )
    */
?>

unique key value array php

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