PHP+MySQL实现无极限分类栏目的方法_php技巧
本文实例讲述了PHP+MySQL实现无极限分类栏目的方法。分享给大家供大家参考，具体如下：
一个非常简单清晰简单的无极限分类范例，带缩进效果，只需查询一次数据表，然后递归遍历结果集，就可以了，要在php中实现栏目缩进显示可以参考一下。
$sql = 'select * from cat order by cat_id desc';
$list = $db->getAll($sql);
$list = getLevelCat($list);
function getLevelCat($catlist, $parent_id='0', $html=' ', $level='0'){
$arr = array();
foreach($catlist as $val){
if($val['parent_id']==$parent_id){
$val['html'] = str_repeat($html,$level);
$val['level'] = $level;
$arr[] = $val;
$arr = array_merge($arr, getLevelCat($catlist, $val['cat_id'], $html, $level+1));
}
}
return $arr;
}
实现效果图：
短短几行代码，比较清晰，也比较好用。
希望本文所述对大家PHP程序设计有所帮助。
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