How to remove duplicate values ​​from an array?

Question

PHP

There is a multidimensional array
need to remove duplicate elements, ie. so that only two values ​​remain Polo and Nike.
PS array_unique() is not suitable!

Answer 1

$has = array();
$output = array();

foreach ( $input as $data )
{
    if ( !in_array($data['clothes_name'], $has) )
    {
        $has[] = $data['clothes_name'];
        $output[] = $data;
    }
}