無限級分類

標籤：

public function getlist($pid = 0, &$result=array(), $spac = 0){
    $spac += 2;
    $list = M(‘liuyan‘)->where(‘pid=‘.$pid)->select();
    foreach($list as $val){
        $val[‘content‘] = str_repeat(‘‘,$spac).$val[‘content‘];
        $result[] = $val;
        $this->getlist($val[‘id‘], $result, $spac);
    }
    return $result;
}

 function genTree($items,$id=‘id‘,$pid=‘pid‘,$son = ‘children‘){    $tree = array(); //格式化的樹    $tmpMap = array();  //臨時扁平資料         foreach ($items as $item) {        $tmpMap[$item[$id]] = $item;    }         foreach ($items as $item) {        if (isset($tmpMap[$item[$pid]])) {            $tmpMap[$item[$pid]][$son][] = &$tmpMap[$item[$id]];        } else {            $tree[] = &$tmpMap[$item[$id]];        }    }    unset($tmpMap);    return $tree;} $items1 = array(        array(‘id‘ => 1, ‘pid‘ => 0, ‘name‘ => ‘一級11‘ ),        array(‘id‘ => 11, ‘pid‘ => 0, ‘name‘ => ‘一級12‘ ),        array(‘id‘ => 2, ‘pid‘ => 1, ‘name‘ => ‘二級21‘ ),        array(‘id‘ => 10, ‘pid‘ => 11, ‘name‘ => ‘二級22‘ ),        array(‘id‘ => 3, ‘pid‘ => 1, ‘name‘ => ‘二級23‘ ),        array(‘id‘ => 12, ‘pid‘ => 11, ‘name‘ => ‘二級24‘ ),        array(‘id‘ => 9, ‘pid‘ => 1, ‘name‘ => ‘二級25‘ ),        array(‘id‘ => 14, ‘pid‘ => 1, ‘name‘ => ‘二級26‘ ),        array(‘id‘ => 4, ‘pid‘ => 9, ‘name‘ => ‘三級31‘ ),        array(‘id‘ => 6, ‘pid‘ => 9, ‘name‘ => ‘三級32‘ ),        array(‘id‘ => 7, ‘pid‘ => 4, ‘name‘ => ‘四級41‘ ),        array(‘id‘ => 8, ‘pid‘ => 4, ‘name‘ => ‘四級42‘ ),        array(‘id‘ => 5, ‘pid‘ => 4, ‘name‘ => ‘四級43‘ ),        array(‘id‘ => 13, ‘pid‘ => 4, ‘name‘ => ‘四級44‘ ),        array(‘id‘ => 15, ‘pid‘ => 8, ‘name‘ => ‘五級51‘ ),        array(‘id‘ => 16, ‘pid‘ => 8, ‘name‘ => ‘五級52‘ ),        array(‘id‘ => 17, ‘pid‘ => 8, ‘name‘ => ‘五級53‘ ),        array(‘id‘ => 18, ‘pid‘ => 16, ‘name‘ => ‘六級64‘ ),); var_dump(genTree($items1));

無限級分類