獲取指定分類的所有子分類ID號

//獲取指定分類的所有子分類ID號
function getAllChildcateIds($categoryID){
    //初始化ID數組
    $array[] = $categoryID;
    do {
        $ids = ‘‘;
        $where[‘pid‘] = array(‘in‘,$categoryID);
        $cate = M(‘cate‘)->where($where)->select();
        foreach ($cate as $k=>$v){
            
 
$array[] = $v[‘id‘];
            $ids .= ‘,‘ . $v[‘id‘];
        }
        $ids = substr($ids, 1, strlen($ids));
        $categoryID = $ids;
    }
    while (!empty($cate));
    $ids = implode(‘,‘, $array);
    return $ids;    //  返回字符串
    //return $array //返回數組
}

獲取指定分類所有父ID號

//獲取指定分類所有父ID號
function getAllFcateIds($categoryID
 
){
//初始化ID數組
$array[] = $categoryID; 
do{
    $ids = ‘‘;
    $where[‘id‘] = array(‘in‘,$categoryID);
    $cate = M(‘cate‘)->where($where)->select();
    echo M(‘cate‘)->_sql();
    foreach ($cate as $v){
        $array[] = $v[‘pid‘];
        $ids .= ‘,‘ . $v[‘pid‘];
    }
    $ids = substr($ids
 
, 1, strlen($ids));
    $categoryID = $ids;
}
while (!empty($cate));
$ids = implode(‘,‘, $array);
 return $ids;   //  返回字符串
//return $array //返回數組
}

獲取指定分類的所有子分類 鍵為ID，值為分類名

//獲取指定分類的所有子分類 鍵為ID，值為分類名
function getCateKv($categoryID){
    //初始化ID數組,賦值當前分類
    $array[] = M(‘cate‘)->where("id={$categoryID}")->getField("cateName");
    do {
        $ids = ‘‘;
        $where[‘pid‘] = array(‘in‘,$categoryID);
        $cate = M(‘cate‘)->where($where)->select();
        echo M(‘cate‘)->_sql();
        foreach ($cate as $k=>$v) {
            $array[$v[‘id‘]] = $v[‘cateName‘];
            $ids .= ‘,‘ . $v[‘id‘];
        }
        $ids = substr($ids, 1, strlen($ids));
        $categoryID = $ids;
    }
    while (!empty($cate));
    $ids = implode(‘,‘, $array);
     //return $ids; //  返回字符串
    return $array //返回數組
}

ThinkPHP分類查詢(獲取當前分類的子分類，獲取父分類，下一級分類)