<?php

function array_values2($arr){
    $data = [];
    foreach ($arr as $k => $v){
         $data [] = $v;
    }
    return $data;
}

$names = ['Ivan' => 'Ivanov', 'Petr' => 'Petrov', 'Anonymous' => 'Anonovich'];

$values = array_values($names);
print_r ($values);

echo PHP_EOL;

$values2 = array_values2($names);
print_r ($values2);