<?php declare(strict_types=1); namespace Doctrine\Inflector; class CachedWordInflector implements WordInflector { /** @var WordInflector */ private $wordInflector; /** @var string[] */ private $cache = []; public function __construct(WordInflector $wordInflector) { $this->wordInflector = $wordInflector; } public function inflect(string $word) : string { return $this->cache[$word] ?? $this->cache[$word] = $this->wordInflector->inflect($word); } }