Php check for duplicates in array

Get duplicate value from array php

$arr = array(1, 4, 6, 1, 8, 9, 4, 6);

$unique = array_unique($arr);

$duplicates = array_diff_assoc($arr, $unique);

print_r($duplicates);
Array ( [3] => 1 [6] => 4 [7] => 6 )

Check duplicate data in array php

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

Php check for duplicates in array

function has_dupes($array) {
    $dupe_array = array();
    foreach ($array as $val) {
        if (++$dupe_array[$val] > 1) {
            return true;
        }
    }
    return false;
}

Source: stackoverflow.com

Similar codes

0 vote249 views1 answer
Wp+get author box in dashboard
PHP
0 vote258 views1 answer
Use id as key in co;lection laravel
PHP
3 votes282 views2 answers
Undefined method JeroenNoten\LaravelAdminLte\Helpers\MenuItemHelper::isSearchBar()
PHP Laravel
0 vote235 views1 answer
Change php version linux nginx
PHP
1 vote265 views4 answers
Laravel create multiple rows
PHP Laravel
0 vote257 views1 answer
How unique field in table in phpmyadmin
PHP
0 vote233 views2 answers
Argument 2 passed to App\Exceptions\Handler::unauthenticated() must be an instance of App\Exceptions\AuthenticationException, instance of Illuminate\Auth\AuthenticationException given
PHP
0 vote244 views2 answers
Laravel gmail send mail 2020
PHP
0 vote227 views1 answer
Check url parameter if not redirect wordpress
PHP
0 vote219 views1 answer
Call a blade from a blade in laravel 8
PHP