这是我目前的论坛的样子： http：//prntscr.com/73oicl
但是，如您所见，这些类别都说“社区”，这不应该发生。 “测试”子类别应在“公告和更新”子类别下。
我知道问题是什么，但我不知道如何解决问题。 function getForums($id) {
$currentHost = "http://$_SERVER[HTTP_HOST]";
$query = "SELECT * FROM forums, categories";
try {
global $db;
$stmt = $db->prepare($query);
$stmt->execute();
$result = $stmt->fetchAll();
foreach($result as $row) {
$category_title = $row['category_title'];
$forum_id = $row['forum_id'];
$forum_title = $row['forum_title'];
$forum_topic_count = $row['forum_topic_count'];
$forum_post_count = $row['forum_post_count'];
$forum_last_topic_id = $row['forum_last_topic_id'];
$forum_last_topic = $row['forum_last_topic'];
$forum_last_date = $row['forum_last_date'];
$forum_last_user = $row['forum_last_user'];
$fixed_last_topic = substr($forum_last_topic,0,25).'...';
echo '<div class="forum pleft">
<div class="forum-header">
<span class="header-text">'.$category_title.'</span>
</div>
<table>
<tr>
<td class="title"><a href="'.$currentHost.'/forums/view-forum/index.php?cid='.$category_id.'&fid='.$forum_id.'">'.$forum_title.'</a></td>
<td class="topics">'.$forum_topic_count.'</td>
<td class="posts">'.$forum_post_count.'</td>
<td class="lastpost"><a href="'.$currentHost.'/forums/view-thread/index.php?cid='.$id.'&fid='.$forum_id.'&tid='.forum_last_topic_id.'">'.$fixed_last_topic.'</a> by <a href="'.$currentHost.'/users/index.php?username='.$forum_last_user.'">'.$forum_last_user.'</a> at '.$forum_last_date.'</td>
</tr>
</table>
</div>';
}
}
catch(PDOException $ex) {
die("error");
}
}
您可以看到，每个结果都将成为一个全新的论坛div，这意味着该类别给出的所有子类别都不会在一起，并且每个子类别都将建立一个新的论坛，我不想要。
有什么方法我想爆炸以进行回声，因此，如果两个或多个子类别在1个类别中，则不会推出新的div？
我在没有测试的情况下写了这篇文章，因此您可能需要检查错误。这可能不是最有效的方法，但应该起作用。
function getForums($id) {
$currentHost = "http://$_SERVER[HTTP_HOST]";
$query = "SELECT * FROM forums, categories ORDER BY categories ASC"; /* Order by categories to arrange same categories together */
try {
global $db;
$stmt = $db->prepare($query);
$stmt->execute();
$result = $stmt->fetchAll();
$numrows = $stmt->fetch(PDO::FETCH_NUM); /* Check for total rows of records */
$count = 0;
$currentCategory = ""; // Declare container
foreach($result as $row) {
$category_title = $row['category_title'];
$forum_id = $row['forum_id'];
$forum_title = $row['forum_title'];
$forum_topic_count = $row['forum_topic_count'];
$forum_post_count = $row['forum_post_count'];
$forum_last_topic_id = $row['forum_last_topic_id'];
$forum_last_topic = $row['forum_last_topic'];
$forum_last_date = $row['forum_last_date'];
$forum_last_user = $row['forum_last_user'];
$fixed_last_topic = substr($forum_last_topic,0,25).'...';
/* If currentCat is empty OR is not similar to previous */
if($currentCategory == "" || $currentCategory != $category_title){
/* If currentcat is not empty AND not similar to previous, close */
if($currentCategory != "" && $currentCategory != $category_title){
echo '</table></div>';
}
echo '<div class="forum pleft">
<div class="forum-header">
<span class="header-text">'.$category_title.'</span>
</div>
<table>
<tr>
<td class="title"><a href="'.$currentHost.'/forums/view-forum/index.php?cid='.$category_id.'&fid='.$forum_id.'">'.$forum_title.'</a></td>
<td class="topics">'.$forum_topic_count.'</td>
<td class="posts">'.$forum_post_count.'</td>
<td class="lastpost"><a href="'.$currentHost.'/forums/view-thread/index.php?cid='.$id.'&fid='.$forum_id.'&tid='.forum_last_topic_id.'">'.$fixed_last_topic.'</a> by <a href="'.$currentHost.'/users/index.php?username='.$forum_last_user.'">'.$forum_last_user.'</a> at '.$forum_last_date.'</td>
</tr>';
$count++;
/* Check if its last row, If yes, end */
if($count == $numrows){
echo '</table></div>';
}
$currentCategory = $category_title; /*Set category title */
}
/* If next row belong to the same category, If yes, continue */
else if($currentCategory == $category_title){
echo '<tr>
<td class="title"><a href="'.$currentHost.'/forums/view-forum/index.php?cid='.$category_id.'&fid='.$forum_id.'">'.$forum_title.'</a></td>
<td class="topics">'.$forum_topic_count.'</td>
<td class="posts">'.$forum_post_count.'</td>
<td class="lastpost"><a href="'.$currentHost.'/forums/view-thread/index.php?cid='.$id.'&fid='.$forum_id.'&tid='.forum_last_topic_id.'">'.$fixed_last_topic.'</a> by <a href="'.$currentHost.'/users/index.php?username='.$forum_last_user.'">'.$forum_last_user.'</a> at '.$forum_last_date.'</td>
</tr>';
$count++;
/* Check if its last row, If yes, end */
if($count == $numrows){
echo '</table></div>';
}
}
}
}
catch(PDOException $ex) {
die("error");
}
}
我在没有测试的情况下写了这篇文章，因此您可能需要检查错误。这可能不是最有效的方法，但应该起作用。
检查总记录的总行 */
$count = 0;
$currentCategory = ""; // Declare container
foreach($result as $row) {
$category_title = $row['category_title'];
$forum_id = $row['forum_id'];
$forum_title = $row['forum_title'];
$forum_topic_count = $row['forum_topic_count'];
$forum_post_count = $row['forum_post_count'];
$forum_last_topic_id = $row['forum_last_topic_id'];
$forum_last_topic = $row['forum_last_topic'];
$forum_last_date = $row['forum_last_date'];
$forum_last_user = $row['forum_last_user'];
$fixed_last_topic = substr($forum_last_topic,0,25).'...';
/* If currentCat is empty OR is not similar to previous */
if($currentCategory == "" || $currentCategory != $category_title){
/* If currentcat is not empty AND not similar to previous, close */
if($currentCategory != "" && $currentCategory != $category_title){
echo '</table></div>';
}
echo '<div class="forum pleft">
<div class="forum-header">
<span class="header-text">'.$category_title.'</span>
</div>
<table>
<tr>
<td class="title"><a href="'.$currentHost.'/forums/view-forum/index.php?cid='.$category_id.'&fid='.$forum_id.'">'.$forum_title.'</a></td>
<td class="topics">'.$forum_topic_count.'</td>
<td class="posts">'.$forum_post_count.'</td>
<td class="lastpost"><a href="'.$currentHost.'/forums/view-thread/index.php?cid='.$id.'&fid='.$forum_id.'&tid='.forum_last_topic_id.'">'.$fixed_last_topic.'</a> by <a href="'.$currentHost.'/users/index.php?username='.$forum_last_user.'">'.$forum_last_user.'</a> at '.$forum_last_date.'</td>
</tr>';
$count++;
/* Check if its last row, If yes, end */
if($count == $numrows){
echo '</table></div>';
}
$currentCategory = $category_title; /*Set category title */
}
/* If next row belong to the same category, If yes, continue */
else if($currentCategory == $category_title){
echo '<tr>
<td class="title"><a href="'.$currentHost.'/forums/view-forum/index.php?cid='.$category_id.'&fid='.$forum_id.'">'.$forum_title.'</a></td>
<td class="topics">'.$forum_topic_count.'</td>
<td class="posts">'.$forum_post_count.'</td>
<td class="lastpost"><a href="'.$currentHost.'/forums/view-thread/index.php?cid='.$id.'&fid='.$forum_id.'&tid='.forum_last_topic_id.'">'.$fixed_last_topic.'</a> by <a href="'.$currentHost.'/users/index.php?username='.$forum_last_user.'">'.$forum_last_user.'</a> at '.$forum_last_date.'</td>
</tr>';
$count++;
/* Check if its last row, If yes, end */
if($count == $numrows){
echo '</table></div>';
}
}
}
}
catch(PDOException $ex) {
die("error");
}
}