src/Psr16MemoryCache.php
public function deleteMultiple($keys)
    {
        \WildWolf\Cache\Validator::validateIterable($keys);

        $result = true;
        foreach ($keys as $key) {
            $result = $this->delete($key) && $result;
        }

        return $result;
    }
public function deleteMultiple($keys)
    {
        \WildWolf\Cache\Validator::validateIterable($keys);

        $result = true;
        foreach ($keys as $key) {
            $result = $this->delete($key) && $result;
        }

        return $result;
    }
Deletes multiple cache items in a single operation.

@param iterable $keys A list of string-based keys to be deleted.

@return bool True if the items were successfully removed. False if there was an error.

@throws \Psr\SimpleCache\InvalidArgumentException
MUST be thrown if $keys is neither an array nor a Traversable,
or if any of the $keys are not a legal value.