轻松递归无限分类

protected $idName = 'stc_id';

protected $parentName = 'stc_parent_id';

/**

* 获取子集并递归
* @param $data
* @param $id
* @param array $new_arr
* @return array
*/
private function whileWhere($data,$id,&$new_arr=[])
{
$select_frist = $this->get_child_array($data,$id);
foreach ($select_frist as $Keies => $value) {
$new_obj = $this->get_child_array($data,$value[$this->idName]);
if(count($new_obj)){
$new_value = [];
$new_arr[] = array_merge($value,["node"=> $this->whileWhere($data,$value[$this->idName],$new_value[])]);
continue;
}
$new_arr[] = $value;
}
return $new_arr;
}

/**

* 子类集
* @param $data
* @param $id
* @return array
*/
protected function get_child_array($data,$id)
{
$new_data = [];
foreach ($data as $k=>$v){
if($v[$this->parentName] === $id){
$new_data[] = array_merge($data[$k],$this->is_child($data,$v[$this->idName]));
}
}
return $new_data;
}

/**

* 查询是否有子集
* @param $data
* @param $id
* @return array
*/
protected function is_child($data,$id)
{
foreach ($data as $k=>$v){
if($id === $v[$this->parentName] ){
return ['child'=>true];
}
}
return ['child'=>false];
}

请不要使用数据库查询操作递归，用语言本身才不会被外部约束！

以上使用id 父id 两个字段完成递归，举一反三哟！

结果：

array(3) { [0] => array(7) { ["stc_id"] => int(1) ["stc_name"] => string(6) "灏忓崕" ["stc_parent_id"] => int(0) ["stc_state"] => int(1) ["stc_sort"] => int(1) ["child"] => bool(true) ["node"] => array(1) { [0] => array(7) { ["stc_id"] => int(3) ["stc_name"] => string(6) "灏忓洓" ["stc_parent_id"] => int(1) ["stc_state"] => int(0) ["stc_sort"] => int(0) ["child"] => bool(true) ["node"] => array(1) { [0] => array(6) { ["stc_id"] => int(4) ["stc_name"] => string(6) "灏忎簲" ["stc_parent_id"] => int(3) ["stc_state"] => int(0) ["stc_sort"] => int(0) ["child"] => bool(false) } } } } } [1] => array(6) { ["stc_id"] => int(5) ["stc_name"] => string(6) "灏忓叚" ["stc_parent_id"] => int(0) ["stc_state"] => int(0) ["stc_sort"] => int(0) ["child"] => bool(false) } [2] => array(6) { ["stc_id"] => int(2) ["stc_name"] => string(6) "灏忕櫧" ["stc_parent_id"] => int(0) ["stc_state"] => int(0) ["stc_sort"] => int(0) ["child"] => bool(false) } }

分类菜单数据渲染案例：

php:

//#########无限循环公共方法
/**
 * @param $data
 * @param $id
 * @param array $new_arr
 * @return array
 */
function whileWhere($data,$id,$idName,$parentName,&$new_arr=[],$mode='mode:node')
{
    $select_frist = get_child_array($data,$id,$idName,$parentName,$mode);
    foreach ($select_frist as $Keies => $value) {
        $new_obj = get_child_array($data,$value[$idName],$idName,$parentName,$mode);
        if(count($new_obj)){
            $new_value = [];
            if($mode === 'mode:node'){
                $new_arr[] = array_merge($value,["node"=>whileWhere($data,$value[$idName],$idName,$parentName,$new_value,$mode)]);
            }elseif($mode === 'mode:array_push'){
                $nodes = whileWhere($data,$value[$idName],$idName,$parentName,$new_value,$mode);
                array_push($new_arr,$value);
                if(count($nodes))
                    foreach ($nodes as $key =>$vlaue){
                        array_push($new_arr,$vlaue);
                    }
            }
            continue;
        }
        $new_arr[] = $value;
    };
    return $new_arr;
}

/**
 * @param $data
 * @param $id
 * @return array
 */
function get_child_array($data,$id,$idName,$parentName,$mode)
{
    $new_data = [];
    foreach ($data as $k=>$v){
        if($v[$parentName] === $id){
                $new_data[] = array_merge($data[$k],is_child($data,$v[$idName],$parentName));
        }
    }
    return $new_data;
}

/**
 * @param $data
 * @param $id
 * @return array
 */
function is_child($data,$id,$parentName)
{
    foreach ($data as $k=>$v){
        if($id === $v[$parentName] ){
            return ['child'=>true];
        }
    }
    return ['child'=>false];
}


//#控制器
    public function index(MicroGoodsStyleCategory $category)
    {
        $data = $category->field('style_name,style_id,style_parent')->order('sort asc,style_id asc')->select()->toArray();
        $arr_calss = [];
        $classed  = whileWhere($data,0,'style_id','style_parent',$arr_calss,'mode:array_push');
        return json(msg_array(1,'ok',$classed));
    }

js:

var take_str = '#take';
$(take_str).treetable({ expandable: true});

　　

css:

*{
    text-align: left;
    margin: 0 auto;
}
.center,.center *{
    text-align: center;
}
.width-30{
     30%;float: left;
}
.width-70{
    70%;float: left;;
}
.width-50{
    50%;float: left;
}
.width-100{
    100%;float: left;
}
.padding_15,.padding_15 *{
    padding: 0 15px;
    -moz-box-sizing: border-box; /*Firefox3.5+*/
    -webkit-box-sizing: border-box; /*Safari3.2+*/
    -o-box-sizing: border-box; /*Opera9.6*/
    -ms-box-sizing: border-box; /*IE8*/
    box-sizing: border-box; /*W3C标准(IE9+，Safari5.1+,Chrome10.0+,Opera10.6+都符合box-sizing的w3c标准语法)*/
}
.floatL{
    float: left;
}
.btn{
    display: inline-block;
    font-weight: 400;
    text-align: center;
    white-space: nowrap;
    vertical-align: middle;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    border: 1px solid transparent;
    padding: .375rem .75rem;
    font-size: 1rem;
    line-height: 1.5;
    border-radius: .25rem;
    transition: color .15s ease-in-out,background-color .15s ease-in-out,border-color .15s ease-in-out,box-shadow .15s ease-in-out;
}

.btn-primary {
    color: #fff;
    background-color: #007bff;
    border-color: #007bff;
}
.selected a{
    color: #fff;
}
.style_management table tr {
    height: 30px;
    font-size: 1rem;
    line-height: 1.5;
    white-space: nowrap;
    vertical-align: middle;
    transition: color .15s ease-in-out,background-color .15s ease-in-out,border-color .15s ease-in-out,box-shadow .15s ease-in-out;
}
._rem{
    display: inline-block;
    font-weight: 400;
    white-space: nowrap;
    vertical-align: middle;
    padding: .375rem .75rem;
    font-size: 1rem;
    line-height: 1.5;
    border-radius: .25rem;
    transition: color .15s ease-in-out,background-color .15s ease-in-out,border-color .15s ease-in-out,box-shadow .15s ease-in-out;
}
.form_group{
    padding: 10px;
     100%;
    height: auto;
    clear: both;
    float: left;
}
.form_group *{
    padding: 0 auto;
}
.form_group .form-control {
    display: block;
    padding: .375rem .75rem;
    font-size: 1rem;
    line-height: 1.5;
    color: #495057;
    background-color: #fff;
    background-clip: padding-box;
    border: 1px solid #ced4da;
    border-radius: .25rem;
    transition: border-color .15s ease-in-out, box-shadow .15s ease-in-out;
}
.heightA,.heightA *{
    height: auto;
}
.clear{
    clear: both;
}
.error-b{
    border: 1px solid #FF0000 !important;
}
.bgr60{
    background-color: #320000 !important;
}

　　

template:

<thead>
<tr>
    <td>自定义分类</td>
</tr>
</thead>
<tbody>
{{each datas}}
{{set v = $value}}
<tr data-tt-id="{{v.style_id}}" data-tt-parent-id="{{v.style_parent}}">
    <td class="width-70 floatL ">{{v.style_name}}</td>
    <td class="width-30 floatL center">
        <a href="#" class="width-50 edit" data-id="{{v.style_id}}"> 编辑</a>
        <a href="#" class="width-50 del" data-id="{{v.style_id}}">删除</a>
    </td>
</tr>
{{/each}}
</tbody>

　　

Html:

<link rel="stylesheet" href="//cdn.bootcss.com/jquery-treetable/3.2.0/css/jquery.treetable.css">
<link rel="stylesheet" href="//cdn.bootcss.com/jquery-treetable/3.2.0/css/jquery.treetable.theme.default.css">
<link rel="stylesheet" href="//cdn.bootcss.com/jquery-modal/0.9.1/jquery.modal.css">

<table id="take">


<script type="text/javascript" src="//cdn.bootcss.com/jquery-treetable/3.2.0/jquery.treetable.min.js"></script>

　　

效果：（jquery-treetable 在数据显示上，其实没有特别的能帮到帮忙。它一定需要你去在返回数据时，按层级的排列数据，否则你会觉得很烦恼。数据参考格式：

[
{
"style_name": "欧美风",
"style_id": 6,
"style_parent": 0,
"child": true
},
{
"style_name": "美式",
"style_id": 10,
"style_parent": 6,
"child": true
},
{
"style_name": "田园风",
"style_id": 11,
"style_parent": 10,
"child": false
},
{
"style_name": "中式风",
"style_id": 8,
"style_parent": 0,
"child": false
},
{
"style_name": "美国风",
"style_id": 9,
"style_parent": 0,
"child": false
}
]