@param string $key

@return boolean
965554
public static function removeFromCache($key)
    {
        $fullKey = static::makeCacheKey($key);
        if (!Cache::forget($fullKey)) {
            return false;
        }

        static::removeKeys($key);

        return true;
    }
1179362
public function has($key)
    {
        $keys = explode('.', $key);
        $cKeys = count($keys);
        $config = $this->_arr;

        for ($i = 0; $i < $cKeys; ++$i) {
            if (is_array($config)) {
                if (array_key_exists($keys[$i], $config)) {
                    $config = $config[$keys[$i]];
                } else {
                    return false;
                }
            } else {
                return false;
            }
        }

        return true;
    }
702363
public function closed(string $key): bool
    {
        $this->data($key);

        return $this->closed[$key] ?? false;
    }
597948
public static function has(string $key) : bool
  {
    if ((new Cache)->retrieve($key) == null) return false;
    return true;
  }
457037
public function has(string $key): bool
    {
        return isset($this->flash[$key])
            || isset($this->data[$key])
            || isset($this->data[self::FLASH][$key]);
    }
1075553
public function has($key): bool
    {
        $this->checkKey($key);
        return (bool) $this->getRedis()->keys($this->filterKey($key));
    }
1198222
protected function isPk($key)
    {
        $pk = $this->getPk();
        if (is_string($pk) && $pk == $key) {
            return true;
        } elseif (is_array($pk) && in_array($key, $pk)) {
            return true;
        }

        return false;
    }
294186
public function has(?string $key = null) : bool
    {
        $key = $this->constructKey($key);

        return $this->parseKey($key, function ($part, $result) {
            return isset($result[$part]);
        });
    }
432982
public function has($key)
    {
        return ! collect(is_array($key) ? $key : func_get_args())->contains(function ($key) {
            return is_null($this->get($key));
        });
    }
1193634
public static function issetValue(string $key): bool
    {
        $key = \mb_strtolower($key);
        return isset(self::$_data[$key]);
    }
1339046
public function hasQuery($key)
    {
        $arrayKeys = array_keys($_GET);
        $keys = is_array($key) ? $key : func_get_args();

        foreach ($keys as $value) {
            if (!in_array($value, $arrayKeys) || trim((string)$_GET[$value]) === '') {
                return false;
            }
        }

        return true;
    }
690301
public function has($key)
	{
		if ( ! isset($this->jar[$key]) or $this->jar[$key]->isDeleted())
		{
			if ( ! $this->parentEnabled or ! $this->parent->has($key))
			{
				return false;
			}
		}

		return true;
	}
669642
public function exists(string $key): bool
    {
        $key = $this->getKey($key);

        return cache()->has($key);
    }
864295
public function delete($key): bool
    {
        if ($this->has($key)) {
            $this->unset($key);
            return true;
        }

        return false;
    }
6039
public function has($key)
    {
        $result = $this->load($key);
        return Arr::has(static::$configs[$result[0]], $result[1]);
    }
479645
public function pull($key)
    {
        if ($this->has($key)) {
            $pulled = $this->get($key);
            $this->remove($key);
            return $pulled;
        }
        return false;
    }
439755
public function has(string $key): bool
    {
        $key = $this->getKey($key, true);
        return isset($this->headers[$key]);
    }