Question

我的查询会产生两个结果，例如

然后我尝试使用带有两个while循环的两个数组拉取结果

while ($rowPost = mysqli_fetch_assoc($grabPostsQuery)) { 
  $posts[] = $rowPost;            
}
while ($rowComment = mysqli_fetch_assoc($grabCommentsQuery)) {
   $comments[] = $rowComment;
}

$grabPostsQuery = "SELECT * FROM posts ORDER BY postDate DESC";
$grabPostsQuery = mysqli_query($link, $grabPostsQuery);
$grabCommentsQuery = "SELECT * FROM comments ORDER BY commentDate DESC";
$grabCommentsQuery = mysqli_query($link, $grabCommentsQuery);

然后我像下面这样制作了一个嵌套的foreach

foreach($posts as $post) {
   foreach($comments as $comment) {
       echo $post['postContent']."<br>";
       echo $comment['commentContent']."<br>";
   }
}

我可以访问帖子和评论，唯一的问题是foreach循环通过帖子和评论多次循环，然后显示两次

请帮助吗？

Answer 1

只运行一个循环，而不是一个循环...

foreach($posts as $post) {
  echo $post['postContent']."<br>";
}
foreach($comments as $comment) {
  echo $comment['commentContent']."<br>";
}

foreach里面的foreach结合了两个mysql查询结果

1 个答案: