php中菜单的层次关系
在这样的表中，我们有层次关系 表名：类别php中菜单的层次关系,php,mysql,Php,Mysql,在这样的表中，我们有层次关系 表名：类别 id parent_id title 1 0 main menu 2 1 sub_menu1 3 2 sub_sub_menu1 另一个表：域 id cat_id name 1 1 main domain 2 2
id parent_id title
1 0 main menu
2 1 sub_menu1
3 2 sub_sub_menu1
id cat_id name
1 1 main domain
2 2 sub domain
3 3 sub sub domain
function getSubCatCount($data,$parent){
$count=0;
$count =$count+ domainCatCount($parent);
return $count;
}
function menuList($data, $parent = 0,$st )
{
static $i = 0;
$tab = str_repeat(" ",$i);
if($data[$parent])
{
$html .= "";
$i++;
if($i==1)
$html .= '<ul data-menu="main" class="menu__level">';
else{
$html .= '<ul data-menu="submenu-'.$parent.'" class="menu__level">';
}
$tmpLis="";
foreach($data[$parent] as $v)
{
$html .= '<li class="menu__item"><a href="#" class="menu__link ';
$child = menuList($data, $v['id'],"false");
$html .= '" data-submenu="submenu-'.$v['id'].'" ';
//if(!$child)
{
$tmpLis.=domainHtmlList($v['id']);
}
$html .= '>';
$html .= $v['title'].'<div style="float: right;"><table style="width: 145px;"><tr><td style="width: 30%;"><img src="https://cdn3.iconfinder.com/data/icons/metro-explorer/512/my_location-512.png" style="width: 20px;height: 20px;" title="usages">'.getUsages($v['id']).'</td><td style="width: 30%;"><img src="http://www.clubs.uci.edu/cae/a/src/1432405005258.png" style="width: 20px;height: 20px;" title="domains">'.getDomainCount($data,$v['id']).'</td><td style="width: 30%;"><img src="https://cdn2.iconfinder.com/data/icons/flat-ui-icons-24-px/24/eye-24-128.png" style="width: 20px;height: 20px;" title="views">'.getViews($v['id']).'</td></tr></table></div></a></li>';
//if (preg_match_all('/<[a-z \'"]*data-menu=[\'"]submenu-'.$v['id'].'[\'"][^>]*>([^<]*)/i', $html, $matches)) {
//print_r($matches);
//$child = menuList($data, $v['id'],"true");
//$html .= $child;
//}
}
if($st!="true")
$html .= "</ul>";
$html .=$tmpLis;
foreach($data[$parent] as $v)
{
$child = menuList($data, $v['id'],"false");
if($child)
{
$i–;
$html .= $child;
}
}
return $html;
}
else
{
return false;
}
}
function domainHtmlList($i){
global $db;
$domainCatRows = $db->getRows("SELECT * FROM `url_domain` WHERE `category` ='".$i."'");
if(count($domainCatRows)>0)
$html = '<ul data-menu="submenu-'.$i.'" class="menu__level">';
foreach($domainCatRows as $ff)
{
$dom=$ff['domain'];
$count=0;
if($ff['domain']=="[[[main_url]]]")
$dom="123.yt";
$html .= '<li class="menu__item"><a href="#" class="menu__link ';
$html .= 'submenu-child" data-key="'.$ff['id'].'" data-domain="'.$dom.'" ';
$html .= '>';
$domainId=$ff['id'];
//for usages
$shortUrlRows = $db->getRows("SELECT count(*) as usages_count FROM `shorturl` WHERE `urlDomainId` in (".$domainId.") ");
foreach($shortUrlRows as $val)
{
$count=$count+$val['usages_count'];
}
//for views
//$tmp= $db->getRows("SELECT count(*) as count FROM `stats` WHERE `url` like '%".$dom."%'");
//echo "SELECT * FROM `stats` WHERE `reffer` like '%".$dom."%'"."<br/>";
//print_r($tmp);
$tmp= $db->getRows("SELECT GROUP_CONCAT(id SEPARATOR ',') as shortUrlDomain FROM `shorturl` WHERE `urlDomainId` in (".$domainId.")");
//echo "SELECT GROUP_CONCAT(id SEPARATOR ',') as shortUrlDomain FROM `shorturl` WHERE `urlDomainId` in (".$domainId.")"."<br/>";
$tmpsts= $db->getRows("SELECT count(*) as count FROM `stats` WHERE `page_title` in (".$tmp[0]['shortUrlDomain'].")");
//echo "SELECT count(*) as count FROM `stats` WHERE `page_title` in (".$tmp[0]['shortUrlDomain'].")"."<br/>";
//$count=$count+$tmpsts[0]['count'];
$html .="<div style='float:right;'><table style='width: 140px;'><tr><td style='width: 30%;'><img src='https://cdn3.iconfinder.com/data/icons/metro-explorer/512/my_location-512.png' style='width: 20px;height: 20px;' title='usages'>".$count."</td><td style='width: 30%;'><img src='https://cdn2.iconfinder.com/data/icons/flat-ui-icons-24-px/24/eye-24-128.png' style='width: 20px;height: 20px;' title='views'>".$tmpsts[0]['count']."</td></tr></table></div>";
$html .= $dom.'</a>';
$html .='</li>';
}
if(count($domainCatRows)>0)
$html .= "</ul>";
return $html;
}
现在的问题是，当我们的子类别和域都在一个类别中时，它不会同时显示这两个类别。它只显示子类别或域。我们尝试了所有的事情，但没有一件成功。那么我们如何显示这种类型的关系呢？我建议所有有这种问题的人使用“嵌套树模型” 在您的categories表中创建两个新的int列lft和rgt，并用算法提供的值填充它们。只要阅读一些文档，就不难理解了。 完成此操作后，您可以通过此查询获取所有主要类别：
SELECT * FROM categories WHERE parent_id = 0 OR parent_id IS NULL
SELECT * FROM categories
WHERE lft >= (
SELECT lft FROM categories
WHERE id = {$id}
) AND rgt <= (
SELECT rat FROM categories
WHERE id = {$id}
)
ORDER BY lft;
尊敬。我建议所有有此问题的人使用“嵌套树模型” 在您的categories表中创建两个新的int列lft和rgt，并用算法提供的值填充它们。只要阅读一些文档，就不难理解了。 完成此操作后，您可以通过此查询获取所有主要类别：
SELECT * FROM categories WHERE parent_id = 0 OR parent_id IS NULL
SELECT * FROM categories
WHERE lft >= (
SELECT lft FROM categories
WHERE id = {$id}
) AND rgt <= (
SELECT rat FROM categories
WHERE id = {$id}
)
ORDER BY lft;