joomla php排序数组从高到低

我正在尝试将数组从高到低排序

查询是在Joomla模块中编写的，如下所示：

$authors = array();
    if (count($rows))
    {
        foreach ($rows as $row)
        {
            $author = JFactory::getUser($row->created_by);
            $author->link = JRoute::_(K2HelperRoute::getUserRoute($author->id));

            $query = "SELECT id, gender, description, image, url, `group`, plugins FROM #__k2_users WHERE userID=".(int)$author->id;
            $db->setQuery($query);
            $author->profile = $db->loadObject();

            if ($params->get('authorAvatar'))
            {
                $author->avatar = K2HelperUtilities::getAvatar($author->id, $author->email, $componentParams->get('userImageWidth'));
            }

            if (K2_JVERSION != '15')
            {
                $languageCheck = '';
                if ($application->getLanguageFilter())
                {
                    $languageTag = JFactory::getLanguage()->getTag();
                    $languageCheck = "AND i.language IN (".$db->Quote($languageTag).", ".$db->Quote('*').") AND c.language IN (".$db->Quote($languageTag).", ".$db->Quote('*').")";
                }
                $query = "SELECT i.*, c.alias as categoryalias FROM #__k2_items as i
                LEFT JOIN #__k2_categories c ON c.id = i.catid
                WHERE i.created_by = ".(int)$author->id."
                AND i.published = 1
                AND i.access IN(".implode(',', $user->getAuthorisedViewLevels()).")
                AND ( i.publish_up = ".$db->Quote($nullDate)." OR i.publish_up <= ".$db->Quote($now)." )
                AND ( i.publish_down = ".$db->Quote($nullDate)." OR i.publish_down >= ".$db->Quote($now)." )
                AND i.trash = 0 AND created_by_alias='' AND c.published = 1 AND c.access IN(".implode(',', $user->getAuthorisedViewLevels()).") AND c.trash = 0 {$languageCheck} ORDER BY created DESC";
            }
            else
            {
                $query = "SELECT i.*, c.alias as categoryalias FROM #__k2_items as i
                LEFT JOIN #__k2_categories c ON c.id = i.catid
                WHERE i.created_by = ".(int)$author->id."
                AND i.published = 1
                AND i.access <= {$aid}
                AND ( i.publish_up = ".$db->Quote($nullDate)." OR i.publish_up <= ".$db->Quote($now)." )
                AND ( i.publish_down = ".$db->Quote($nullDate)." OR i.publish_down >= ".$db->Quote($now)." )
                AND i.trash = 0 AND created_by_alias='' AND c.published = 1 AND c.access <= {$aid} AND c.trash = 0 ORDER BY created DESC";
            }

            $db->setQuery($query, 0, 1);
            $author->latest = $db->loadObject();
            $author->latest->id = (int)$author->latest->id;
            $author->latest->link = urldecode(JRoute::_(K2HelperRoute::getItemRoute($author->latest->id.':'.urlencode($author->latest->alias), $author->latest->catid.':'.urlencode($author->latest->categoryalias))));

            $query = "SELECT COUNT(*) FROM #__k2_comments WHERE published=1 AND itemID={$author->latest->id}";
            $db->setQuery($query);
            $author->latest->numOfComments = $db->loadResult();

            if ($params->get('authorItemsCounter'))
            {
                if (K2_JVERSION != '15')
                {
                    $languageCheck = '';
                    if ($application->getLanguageFilter())
                    {
                        $languageTag = JFactory::getLanguage()->getTag();
                        $languageCheck = "AND language IN (".$db->Quote($languageTag).", ".$db->Quote('*').")";
                    }
                    $query = "SELECT COUNT(*) FROM #__k2_items  WHERE {$where} published=1 AND ( publish_up = ".$db->Quote($nullDate)." OR publish_up <= ".$db->Quote($now)." ) AND ( publish_down = ".$db->Quote($nullDate)." OR publish_down >= ".$db->Quote($now)." ) AND trash=0 AND access IN(".implode(',', $user->getAuthorisedViewLevels()).") AND created_by_alias='' AND created_by={$row->created_by} {$languageCheck} AND EXISTS (SELECT * FROM #__k2_categories WHERE id= #__k2_items.catid AND published=1 AND trash=0 AND access IN(".implode(',', $user->getAuthorisedViewLevels()).") {$languageCheck} )";
                }
                else
                {
                    $query = "SELECT COUNT(*) FROM #__k2_items  WHERE {$where} published=1 AND ( publish_up = ".$db->Quote($nullDate)." OR publish_up <= ".$db->Quote($now)." ) AND ( publish_down = ".$db->Quote($nullDate)." OR publish_down >= ".$db->Quote($now)." ) AND trash=0 AND access<={$aid} AND created_by_alias='' AND created_by={$row->created_by} AND EXISTS (SELECT * FROM #__k2_categories WHERE id= #__k2_items.catid AND published=1 AND trash=0 AND access<={$aid} ) ";
                }
                $db->setQuery($query);
                $numofitems = $db->loadResult();
                $author->items = $numofitems;
            }

            $authors[] = $author;

        }
    }


    return $authors;
}

任何想法都值得赞赏

---

谢谢

通常，可以通过指定顺序对数据库查询进行排序，如中所示

$query->order('my_table.my_column desc')

如果要对PHP数组进行排序，并且需要自定义排序条件，则可以将自己的排序条件与

usort

一起使用。例如：

// Your comparison function:

function myComparer($object1, $object2)
{
    if ($object1->item == $object2->item) {
       return 0;
    }

    return ($object1->item < $object2-item) ? -1 : 1;
}

// Sort the array in place

usort($authors, 'myComparer');

//您的比较函数：
函数myComparer（$object1，$object2）
{
如果（$object1->item==$object2->item）{
返回0；
}
返回（$object1->item<$object2 item）？-1:1；
}
//将数组排序到位
usort（$authors，'myComparer'）；

注意：只需交换比较返回值，即可颠倒排序顺序：

return ($object1->itemCount < $object2-itemCount) ? 1 : -1;

return（$object1->itemCount<$object2 itemCount）？1 : -1;

谢谢您的建议，但上面的代码给了我一个空白页警告：usort（）希望参数1是数组，在第167行的/home/proteino/public\u html/modules/mod\u k2\u tools/helper.php中给出的对象致命错误：无法重新声明myComparer（）（以前在/home/proteino/public\u html/modules/modules/modules\u k2\u tools/helper.php:156中声明）在第156行的/home/proteino/public_html/modules/mod_k2_tools/helper.php中，您应该向usort传递一个数组。不要包含函数两次。我尝试了所有可能的组合usort（$authors，'myparer'）usort（$authors[]，'myparer'）usort（$author，'myparer'）usort（$author[]，'myparer'）都不起作用。如果我只使用arsort，表会排序，但不会根据$author->items=$numofitems；但根据另一件事，你拼写“myComparer”错了。当你有Joomla问题时，请把它们发到Stack Exchange。您应该使用Joomla的查询构建方法构建查询。您的代码可以进行重构，以压缩条件查询构建<代码>$其中是个谜。事实上，看起来你可以结合一些查询来避免很多复杂的代码。这个页面没有经过投票表决的答案：@mickmackusa当然这个类没有优化，但它是joomla的内置模块，所以我没有编写它。在我发帖之前，相信我，我尝试了一切。但我不是一个声音开发人员，也没有数组（键、值、对象）方面的经验。因此，根据答案，我无法区分是将$author替换为$a还是将$items替换为$aDon。如果不比较它们的字符串值，请使用jspcal的解决方案。此外，不要在这里（永远）共享代码的图像，我们总是希望处理文本，以防复制粘贴。3v4l.org是一个很好的工具。

return ($object1->itemCount < $object2-itemCount) ? 1 : -1;