php递归获取无限分类菜单

从数据库获取所有菜单信息，需要根据id，pid字段获取主菜单及其子菜单，以及子菜单下的子菜单，可以通过函数递归来实现。

<?php
class Menu {
    public $menu = array();
    public function __construct() {
        $this->menu = array(
            array(‘id‘=>1,  ‘title‘=>"首页",‘pid‘=>0),
            array(‘id‘=>158,‘title‘=>"基础信息",‘pid‘=>157),
            array(‘id‘=>159,‘title‘=>"产消日志",‘pid‘=>157),
            array(‘id‘=>147,‘title‘=>"玩家管理",‘pid‘=>124),
            array(‘id‘=>148,‘title‘=>"踢线封停禁言",‘pid‘=>147),
            array(‘id‘=>149,‘title‘=>"游戏公告",‘pid‘=>147),
            array(‘id‘=>150,‘title‘=>"礼包卡",‘pid‘=>147),
            array(‘id‘=>151,‘title‘=>"邮件发送",‘pid‘=>147),
            array(‘id‘=>152,‘title‘=>"全服邮件发送",‘pid‘=>147),
            array(‘id‘=>160,‘title‘=>"玩家调整",‘pid‘=>147),
            array(‘id‘=>154,‘title‘=>"审批管理",‘pid‘=>147),
            array(‘id‘=>155,‘title‘=>"GM指令",‘pid‘=>147),
            array(‘id‘=>156,‘title‘=>"服务器参数配置",‘pid‘=>147),
            array(‘id‘=>157,‘title‘=>"日志查询",‘pid‘=>124),
            array(‘id‘=>123,‘title‘=>"数据查询",‘pid‘=>0),
            array(‘id‘=>124,‘title‘=>"游戏管理",‘pid‘=>0),
            array(‘id‘=>126,‘title‘=>"系统工具",‘pid‘=> 0),
            array(‘id‘=>127,‘title‘=>"权限管理",‘pid‘=> 0),
            array(‘id‘=>128,‘title‘=>"数据总览",‘pid‘=>123),
            array(‘id‘=>129,‘title‘=>"登录建角与在线数据",‘pid‘=>123),
            array(‘id‘=>130,‘title‘=>"留存数据分析",‘pid‘=>123),
            array(‘id‘=>131,‘title‘=>"付费统计",‘pid‘=>123),
            array(‘id‘=>132,‘title‘=>"消耗数据分析",‘pid‘=>123),
            array(‘id‘=>134,‘title‘=>"实时统计",‘pid‘=>129),
            array(‘id‘=>135,‘title‘=>"历史统计",‘pid‘=>129),
            array(‘id‘=>137,‘title‘=>"日留存",‘pid‘=>130),
            array(‘id‘=>138,‘title‘=>"等级&任务留存",‘pid‘=>130),
            array(‘id‘=>139,‘title‘=>"分职业统计",‘pid‘=>130),
            array(‘id‘=>140,‘title‘=>"日充值统计",‘pid‘=>131),
            array(‘id‘=>141,‘title‘=>"充值订单",‘pid‘=> 131),
            array(‘id‘=>142,‘title‘=>"充值排行",‘pid‘=>131),
            array(‘id‘=>143,‘title‘=>"货币消耗",‘pid‘=>132),
            array(‘id‘=>144,‘title‘=>"货币日留存",‘pid‘=>132),
            array(‘id‘=>145,‘title‘=>"用户管理",‘pid‘=>127),
            array(‘id‘=>146,‘title‘=>"用户组管理",‘pid‘=>127)
        );
        return $this->getMenu();
    }
    /**
     * 主菜单pid为0
     * @return array
     */
    protected function getMenu() {
        foreach ($this->menus as $key => $items) {
            if ($items[‘pid‘] == "0" ) {
                unset($this->menu[$key]);
                $menu[] = $this->buildMenuTree($items, $items[‘id‘]);
            }
        }
        return $menu;
    }
    /**
     * 生产多级菜单树
     * @param array $items
     * @param int $rid
     * @return array
     */
    protected function buildMenuTree($items,$rid) {
        $childs = $this->getChildMenu($items, $rid);
        if (isset($childs[‘child‘])) {
            foreach ($childs[‘child‘] as $key => $value) {
                $children = $this->buildMenuTree($value, $value[‘id‘]);
                if (null != $children[‘child‘]) {
                    $childs[‘child‘][$key][‘child‘] = $children[‘child‘];
                }
            }
        }
        return $childs;
    }

    /**
     * 获取子菜单
     *
     */
    protected function getChildMenu($items,$rid) {
        foreach ($this->menu as $key => $value) {
            if ($value[‘pid‘] == $rid) {
                unset($this->menu[$key]);
                $items[‘child‘][] = $value;
            }
        }
        return $items;
    }

}

var_dump(new Menu);
测试结果为：
array(5) {
  [0] => array(4) {
    ["id"] => string(1) "1"
    ["title"] => string(6) "首页"
    ["pid"] => string(1) "0"
    ["sort"] => string(1) "1"
  }
  [1] => array(5) {
    ["id"] => string(3) "123"
    ["title"] => string(12) "数据查询"
    ["pid"] => string(1) "0"
    ["sort"] => string(1) "1"
    ["child"] => array(5) {
      [0] => array(4) {
        ["id"] => string(3) "128"
        ["title"] => string(12) "数据总览"
        ["pid"] => string(3) "123"
        ["sort"] => string(1) "0"
      }
      [1] => array(5) {
        ["id"] => string(3) "129"
        ["title"] => string(27) "登录建角与在线数据"
        ["pid"] => string(3) "123"
        ["sort"] => string(1) "0"
        ["child"] => array(2) {
          [0] => array(4) {
            ["id"] => string(3) "134"
            ["title"] => string(12) "实时统计"
            ["pid"] => string(3) "129"
            ["sort"] => string(1) "0"
          }
          [1] => array(4) {
            ["id"] => string(3) "135"
            ["title"] => string(12) "历史统计"
            ["pid"] => string(3) "129"
            ["sort"] => string(1) "0"
          }
        }
      }
      [2] => array(5) {
        ["id"] => string(3) "130"
        ["title"] => string(18) "留存数据分析"
        ["pid"] => string(3) "123"
        ["sort"] => string(1) "0"
        ["child"] => array(3) {
          [0] => array(4) {
            ["id"] => string(3) "137"
            ["title"] => string(9) "日留存"
            ["pid"] => string(3) "130"
            ["sort"] => string(1) "0"
          }
          [1] => array(4) {
            ["id"] => string(3) "138"
            ["title"] => string(19) "等级&任务留存"
            ["pid"] => string(3) "130"
            ["sort"] => string(1) "0"
          }
          [2] => array(4) {
            ["id"] => string(3) "139"
            ["title"] => string(15) "分职业统计"
            ["pid"] => string(3) "130"
            ["sort"] => string(1) "0"
          }
        }
      }
      [3] => array(5) {
        ["id"] => string(3) "131"
        ["title"] => string(12) "付费统计"
        ["pid"] => string(3) "123"
        ["sort"] => string(1) "0"
        ["child"] => array(3) {
          [0] => array(4) {
            ["id"] => string(3) "140"
            ["title"] => string(15) "日充值统计"
            ["pid"] => string(3) "131"
            ["sort"] => string(1) "0"
          }
          [1] => array(4) {
            ["id"] => string(3) "141"
            ["title"] => string(12) "充值订单"
            ["pid"] => string(3) "131"
            ["sort"] => string(1) "0"
          }
          [2] => array(4) {
            ["id"] => string(3) "142"
            ["title"] => string(12) "充值排行"
            ["pid"] => string(3) "131"
            ["sort"] => string(1) "0"
          }
        }
      }
      [4] => array(5) {
        ["id"] => string(3) "132"
        ["title"] => string(18) "消耗数据分析"
        ["pid"] => string(3) "123"
        ["sort"] => string(1) "0"
        ["child"] => array(2) {
          [0] => array(4) {
            ["id"] => string(3) "143"
            ["title"] => string(12) "货币消耗"
            ["pid"] => string(3) "132"
            ["sort"] => string(1) "0"
          }
          [1] => array(4) {
            ["id"] => string(3) "144"
            ["title"] => string(15) "货币日留存"
            ["pid"] => string(3) "132"
            ["sort"] => string(1) "0"
          }
        }
      }
    }
  }
  [2] => array(5) {
    ["id"] => string(3) "124"
    ["title"] => string(12) "游戏管理"
    ["pid"] => string(1) "0"
    ["sort"] => string(1) "3"
    ["child"] => array(2) {
      [0] => array(5) {
        ["id"] => string(3) "147"
        ["title"] => string(12) "玩家管理"
        ["pid"] => string(3) "124"
        ["sort"] => string(1) "0"
        ["child"] => array(9) {
          [0] => array(4) {
            ["id"] => string(3) "148"
            ["title"] => string(18) "踢线封停禁言"
            ["pid"] => string(3) "147"
            ["sort"] => string(1) "0"
          }
          [1] => array(4) {
            ["id"] => string(3) "149"
            ["title"] => string(12) "游戏公告"
            ["pid"] => string(3) "147"
            ["sort"] => string(1) "0"
          }
          [2] => array(4) {
            ["id"] => string(3) "150"
            ["title"] => string(9) "礼包卡"
            ["pid"] => string(3) "147"
            ["sort"] => string(1) "0"
          }
          [3] => array(4) {
            ["id"] => string(3) "151"
            ["title"] => string(12) "邮件发送"
            ["pid"] => string(3) "147"
            ["sort"] => string(1) "0"
          }
          [4] => array(4) {
            ["id"] => string(3) "152"
            ["title"] => string(18) "全服邮件发送"
            ["pid"] => string(3) "147"
            ["sort"] => string(1) "0"
          }
          [5] => array(4) {
            ["id"] => string(3) "160"
            ["title"] => string(12) "玩家调整"
            ["pid"] => string(3) "147"
            ["sort"] => string(1) "0"
          }
          [6] => array(4) {
            ["id"] => string(3) "154"
            ["title"] => string(12) "审批管理"
            ["pid"] => string(3) "147"
            ["sort"] => string(1) "0"
          }
          [7] => array(4) {
            ["id"] => string(3) "155"
            ["title"] => string(8) "GM指令"
            ["pid"] => string(3) "147"
            ["sort"] => string(1) "0"
          }
          [8] => array(4) {
            ["id"] => string(3) "156"
            ["title"] => string(21) "服务器参数配置"
            ["pid"] => string(3) "147"
            ["sort"] => string(1) "0"
          }
        }
      }
      [1] => array(5) {
        ["id"] => string(3) "157"
        ["title"] => string(12) "日志查询"
        ["pid"] => string(3) "124"
        ["sort"] => string(1) "0"
        ["child"] => array(2) {
          [0] => array(4) {
            ["id"] => string(3) "158"
            ["title"] => string(12) "基础信息"
            ["pid"] => string(3) "157"
            ["sort"] => string(1) "0"
          }
          [1] => array(4) {
            ["id"] => string(3) "159"
            ["title"] => string(12) "产消日志"
            ["pid"] => string(3) "157"
            ["sort"] => string(1) "0"
          }
        }
      }
    }
  }
  [3] => array(4) {
    ["id"] => string(3) "126"
    ["title"] => string(12) "系统工具"
    ["pid"] => string(1) "0"
    ["sort"] => string(1) "4"
  }
  [4] => array(5) {
    ["id"] => string(3) "127"
    ["title"] => string(12) "权限管理"
    ["pid"] => string(1) "0"
    ["sort"] => string(1) "5"
    ["child"] => array(2) {
      [0] => array(4) {
        ["id"] => string(3) "145"
        ["title"] => string(12) "用户管理"
        ["pid"] => string(3) "127"
        ["sort"] => string(1) "0"
      }
      [1] => array(4) {
        ["id"] => string(3) "146"
        ["title"] => string(15) "用户组管理"
        ["pid"] => string(3) "127"
        ["sort"] => string(1) "0"
      }
    }
  }
}
时间： 2024-10-10 01:06:44

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