recursive_array_validator.php

/**
 * Validates a multi-dimensional array against a default "template"
 *
 * @param string $settingName
 * @param array $templateArray
 * @param array $newArray
 * @param string $depth
 */
private function validateArrayRecursively(
    string $settingName,
    array $templateArray,
    array $newArray,
    string $depth = 'array'
): void
{
    foreach ($templateArray as $key => $value) {
        if (!\array_key_exists($key, $newArray)) {
            throw new InvalidationException(\sprintf('Setting "%s" must have required key "%s[%s]"', $settingName, $depth, $key));
        }

        if (\gettype($newArray[$key]) !== \gettype($value)) {
            throw new InvalidationException(\sprintf(
                'Key "%s[%s]" of setting "%s" must be of type "%s", "%s" was found',
                $depth,
                $key,
                $settingName,
                \gettype($value),
                \gettype($newArray[$key]),
            ));
        }

        if (\is_array($value)) {
            $this->validateArrayRecursively($settingName, $value, $newArray[$key], $depth . '[' . $key . ']');
        }
    }
}