Remove duplicates from PHP array

Question

My PHP script is returning some array and I would like to remove duplicates in that array. Can you please tell me how? I dont want to remove duplicates from MySQL, just from PHP

Answer 1

Replace this:

$rows = (object) array('lista' => $rows);
echo json_encode($rows);

With this:

$lista = array_map('unserialize', array_unique(array_map('serialize', $rows)));
echo json_encode((object) array('lista' => $lista));

Answer 2

try this function http://php.net/manual/en/function.array-unique.php

array array_unique ( array $array [, int $sort_flags = SORT_STRING ] )

Exemple from the php.net documentation :

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