php生成无限栏目树

迷茫

发布： 2017-03-26 10:17:58

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远航CMS(yhcms)(分站版)2.6.5

远航CMS(yhcms)是一套基于PHP+MYSQL为核心开发的专业营销型企业建站系统。是国内首家免费+开源自带分站系统的php内容管理系统。长期以来不断的完善、创新，远航CMS会为您带来全新的体验！产品十大优势：模板分离：模板程序分离，深度二次开发三网合一：电脑/手机/微信多终端访问自定义广告：图片/文字/动画定时发布：SEO维护，无需人工值守多词生成：栏目关键词多方案生成SEO设置：自定义U

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$arr=Array(
    Array('cid' => 2,'cname' => '新闻','pid' => 0),
    Array('cid' => 4,'cname' =>'体育','pid' => 0),
    Array('cid' => 5,'cname' => '娱乐','pid' => 0),
    Array('cid' => 7,'cname' => '热点新闻','pid' =>2),
    Array('cid' => 8,'cname' => '小众新闻','pid' => 2),
    Array('cid' => 9,'cname' => '民谣新闻','pid' => 8),
);

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<?php
$arr=Array(
    Array('cid' => 2,'cname' => '新闻','pid' => 0),
    Array('cid' => 4,'cname' =>'体育','pid' => 0),
    Array('cid' => 5,'cname' => '娱乐','pid' => 0),
    Array('cid' => 7,'cname' => '热点新闻','pid' =>2),
    Array('cid' => 8,'cname' => '小众新闻','pid' => 2),
    Array('cid' => 9,'cname' => '民谣新闻','pid' => 8),

);
function formatTree($array, $pid = 0,$level = 1,$field = array('pid'=>'pid','id'=>'id','children'=>'children')){
        $arr = array();
        foreach ($array as &$v) {
            if ($v[$field['pid']] == $pid) {
                $v['level'] = $level;
                $tem = formatTree($array, $v[$field['id']],$v['level']+1,$field);
                //判断是否存在子数组
                $tem && $v[$field['children']] = $tem;
                $arr[] = $v;
            }
        }
        return $arr;
    }

$tree = formatTree( $arr,0,1, $field = array('pid'=>'pid','id'=>'cid','children'=>'children') );
echo '<pre class="brush:php;toolbar:false;">';
print_r( $tree);

?>

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