Thinkphp5清除runtime下的cache缓存，temp缓存，log缓存

/**
   * 清除缓存
   */
  public function clearCache(){
    \think\facade\Cache::clear();
    return ZHTReturn('清除成功',1);
  }
  /**
   * 清除模版缓存但不删除temp目录
   */
	public function clearTemp() {
    $path = env('RUNTIME_PATH');
    // $path = env();
    // dump($path);
    // die;
		array_map('unlink',glob($path.'temp\*.php'));
		return ZHTReturn('清除成功',1);
	}
	/**
   * 清除日志缓存并删出log空目录
   */
	public function clearLog() {
    $path = env('RUNTIME_PATH');
		$path_log = glob($path.'log\*');
		foreach ($path_log as $val) {
			array_map('unlink', glob($val . '\*.log'));
			rmdir($val);
		}
		return ZHTReturn('清除成功',1);
  }
  /**
   * 清除所有缓存
   */
	public function clearAll() {
    \think\facade\Cache::clear();

    $path = env('RUNTIME_PATH');
		array_map('unlink',glob($path.'temp\*.php'));

		$path_log = glob($path.'log\*');
		foreach ($path_log as $val) {
			array_map('unlink', glob($val . '\*.log'));
			rmdir($val);
		}
		return ZHTReturn('清除成功',1);
	}