未定义的偏移量：读取fopen时为6

Question

           foreach($posts as $post)
    {
        $words = preg_split("/\|/", $post);
        $author     = trim($words[0]) . ' ' . trim($words[1]);
        $title      = trim($words[2]);
        $comment    = trim($words[3]);
        $priority   = trim($words[4]);
        $filename   = trim($words[5]);
        $postedTime = $words[6];

我将.txt文件传递给html表单，该文件缺少一些我不应该显示的信息。在读取它时，我在$ postedTime上得到一个未定义的偏移量6，该文件缺少该值。任何想法如何避免消息？

Answer 1

要避免消息您可以执行以下操作：

.container-wrapper {
  display: flex;
}

.container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.scroll {
  flex-grow: 1;
}

Answer 2

试试这个：

$postedTime = (isset($words[6]))?$words[6]:'';