array_merge

<?php     private function getConstantNames(ReflectionClass $reflection): array

    {

        return array_merge(...array_values((array_map(

            function (ReflectionClassConstant $constant) use ($reflection): array {

                foreach ($reflection->getTraits() as $trait) {

                    if ($trait->hasConstant($constant->getName())) {

                        return [];

                    }

                }

                if ($constant->class !== $reflection->name) {

                    return [];

                }

                $value = $constant->getValue();



                if ($value instanceof BackedEnum) {

                    return is_string($value->value)

                        ? [$value->name, $value->value]

                        : [$value->name];

                }



                return is_string($value)

                    ? [$constant->name, $value]

                    : [$constant->name];

            },

            $reflection->getReflectionConstants()

        ))));

    }

<?php     public function ignoreWords(array $words): void

    {

        $this->whitelistedWords = array_merge($this->whitelistedWords, array_map(strtolower(...), $words));



        $this->persist();

    }