Rumah > Artikel > pembangunan bahagian belakang > php如何实现无限极分类?无限极分类的三种实现方法(代码详解)
本篇文章给大家带来的内容是介绍php如何实现无限极分类?无限极分类的三种实现方法(代码详解)。有一定的参考价值,有需要的朋友可以参考一下,希望对你们有所帮助。
无限极分类1:
public function judeg($id) { $rs = Db::name('finance_class') -> field('parent_code') -> where('id',$id) -> select(); $i = 1; foreach($rs as $k => $v){ if($v['parent_code'] a8093152e673feb7aba1828c43532094 0){ $i += $this -> judeg($v['parent_code']); } } return $i; } public function cid($id,$pid) { $w['parent_code'] = $id; $rs = Db::name('finance_class') -> field('id,code,name,parent_code') -> where($w) -> order('code asc') -> select(); $str = ''; foreach ($rs as $k => $v) { $name = $v['name']; $_id = $v['id']; $cutOff = ''; for($i = 0; $i 07712f3ff3ffe56750e7faf0f297fe4b judeg($_id); $i++){ $cutOff.='-'; } if($_id == $pid){ $str.='e388a4556c0f65e1904146cc1a846bee他的id='.$_id.'====他的级别'.$cutOff.$name.'94b3e26ee717c64999d7867364b1b4a3'; }else{ $str.='e388a4556c0f65e1904146cc1a846bee他的id='.$_id.'====他的级别'.$cutOff.$name.'94b3e26ee717c64999d7867364b1b4a3'; } $str.=$this->cid($_id,$pid); } return $str; 37} public function finance_c() { $w['type'] = '资产类'; $w['parent_code'] = 0; $rs = Db::name('finance_class') -> field('id,code,name,parent_code') -> where($w) -> select(); $str = ''; foreach ($rs as $k => $v){ $str.= 'e388a4556c0f65e1904146cc1a846bee一级name:'.$v['name'].'94b3e26ee717c64999d7867364b1b4a3'; $str.= $this -> cid($v['id'],0); } echo $str; }
这个方法出来的效率慢,而且很绕。
方法2:
public function getVoucherClass() { $lists = Db::name('finance_class')->select(); $lists = $this->getTree($lists); foreach($lists as $value){ echo str_repeat('--', $value['level']), $value['name'].'<br />'; } 10} /** * 递归实现无限极分类 * @param $array 分类数据 * @param $pid 父ID * @param $level * @return $list */ function getTree($array, $pid =0, $level = 0){ static $list = []; foreach ($array as $key => $value){ if ($value['parent_code'] == $pid){ $value['level'] = $level; $list[] = $value; unset($array[$key]); $this->getTree($array, $value['id'],$level+1); } } return $list; 30}
无限极分类3:
public function index() { $lists = \think\Db::table('ozyx_finance_class')->select(); $lists = $this->getTree($lists,0); foreach ($lists as $k => $v) { $lists_one[$v['type']][]=$v; } // halt($lists_one); $this->assign('lists', $lists_one); return view(); } /** * 无限极分类 */ function getTree($data, $pid) { $tree = ''; foreach($data as $k => $v) { if($v['parent_code'] == $pid) { $v['parent_code'] = $this->getTree($data, $v['id']); $tree[] = $v; unset($data[$k]); } } return $tree; }
数据表结构:
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