为什么我的PHP如果循环不能正常工作

Question

我有这个PHP代码它会进行测试并在测试结果为真时运行它。但即使它得到错误的结果，CastResult也会忽略if check。

private function canVote($user,$id)
 {
        $userVoted = VoteModel::where('user',$user)->where('post',$id)->get();
        if(count($userVoted)==0)
            {
                $canVote=true;
            }
        else {
            $canVote=false;
        }
      return $canVote;
  }
    private function castVote($mode)
    {
        $user = Auth::getUser();
        $id = $this->param('id');

        if($this->canVote($user,$id))
        {
            $newVote = new VoteModel;
            $newVote->user = $user['name'];
           //other stuff

        } else
            {
                Flash::error('Err');
            }
    }

Answer 1

更简单明了，没有未定义的变量：

private function canVote($user,$id)
{
    $userVoted = VoteModel::where('user',$user)->where('post',$id)->get();
    return ( count($userVoted) === 0 );
}