Рома Матрук 3

<?php

$f = function (string $a, string $b) {
            $a = str_replace(" ","", $a);
            $firstArray = str_split($a);
            $secondArray = str_split($b);

            foreach ($secondArray as $i => $secondArrayElement) {
                if ($secondArrayElement === ' ') {
                    continue;
                }

                if (false !== $key = array_search($secondArrayElement, $firstArray)) {
                    unset($firstArray[$key]);
                    unset($secondArray[$i]);
                    continue;
                }

                return false;
            }

            if (count($firstArray) !== 0) {
                return false;
            }
            return true;
        };

        var_dump($f('clockwise   ', 'owe    clicks'));

        var_dump($f('clockwise', ' clockwork'));

        var_dump($f('aasd ', 'aa '));