<?php
 
namespace Maks {
    class MaksTest
    {
        public static function test()
        {
            echo __CLASS__ . PHP_EOL;
            return;
        }
    }
}
 
namespace TosterAnswer {
    use Maks;
 
    echo "Первый способ: ";
    Maks\MaksTest::test();
}
 
namespace TosterAnswer2 {
 
    echo "Второй способ: ";
    call_user_func(['Maks\MaksTest', 'test']);
 
 
    echo "Третий способ: ";
    $maks = [$str, 'test'];
    $maks();
}
 

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