PHPOffice/PHPExcel生成省市区三级联动的excel表格

　　最近公司需要用到一个省市区三级联动的excel表格，但是数据都在数据库，又太多，人工不好制作，就让我这个phper来帮忙啦。

　　主要用到的是excel的定义名称，数据验证。其中数据验证的列表只能是一列或者一行，网上查了下说可以先用一行做数据验证，然后修改名称的定义范围，经过我尝试，效果不好。

　　然后我把顶级名称的东西放到了表格的“无人地带”，解决了问题，也算是耍了个小聪明吧。

　　效果图：

　　代码片段(php)：

public function actionTest2()
    {
        $subject = 'demo';
        $title = ['省','市','区'];
        $data = [
            [
                'name' => '湖北省',
                'children' => [
                    [
                        'name' => '武汉市',
                        'children' => ['江夏区','洪山区','青山区','武昌区','汉口']
                    ],
                    [
                        'name' => '宜昌市',
                        'children' => ['当阳市','夷陵区','庙前']
                    ],
                    [
                        'name' => '荆州市',
                        'children' => ['荆州区','荆州城区']
                    ]
                ]
            ],
            [
                'name' => '湖南省',
                'children' => [
                    [
                        'name' => '长沙市',
                        'children' => ['长沙1','长沙2','长沙3','长沙4','长沙5','长沙6','长沙7']
                    ],
                    [
                        'name' => '岳阳市',
                        'children' => ['岳阳市1','益阳市']
                    ],
                    [
                        'name' => '常德市',
                        'children' => ['常德山庄1','常德山庄2','常德山庄3']
                    ]
                ]
            ],
            [
                'name' => '广东省',
                'children' => [
                    [
                        'name' => '广东市',
                        'children' => ['广东市1','广东市2','广东市3']
                    ],
                    [
                        'name' => '深圳',
                        'children' => ['深圳1','深圳2','深圳3']
                    ],
                    [
                        'name' => '佛山市',
                        'children' => ['佛山1','佛山2','佛山3','佛山4','佛山5']
                    ]
                ]
            ],
        ];
        $high = 0;
        $objPHPExcel = new \PHPExcel();
        $titleRow = array('A1','B1','C1','D1','E1','F1','G1','H1','I1','J1','K1','L1','M1','N1','O1','P1','Q1','R1','S1','T1','U1','V1','W1','X1','Y1','Z1','AA1','AB1','AC1','AD1');
        for($a = 0; $a < count($title); $a++){
            $objPHPExcel->setActiveSheetIndex(0)->setCellValue($titleRow[$a], $title[$a]);
        }
        $supportSheet = new \PHPExcel_Worksheet($objPHPExcel, 'support'); //创建一个工作表
        $objPHPExcel->addSheet($supportSheet); //插入工作表
        $col = ['A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z'];
        foreach ($data as $key=>$first){
            $objPHPExcel->getSheetByName('support')->setCellValue($col[0].($key+1+$high),$first['name']);
            $max = 0; //重置max
            $secondNum = count($first['children']);
            foreach ($first['children'] as $index=>$second){
                $objPHPExcel->getSheetByName('support')->setCellValue($col[$index+1].($key+1+$high),$second['name']);
                $thirdNum = count($second['children']);
                if ($thirdNum > $max){
                    $max = $thirdNum;
                }
                foreach ($second['children'] as $id=>$third){
                    $objPHPExcel->getSheetByName('support')->setCellValue($col[$index+1].($key+1+$high+$id+1),$third);
                }
                //定义三级名称
                $objPHPExcel->addNamedRange(
                    new \PHPExcel_NamedRange(
                        $second['name'],
                        $objPHPExcel->getSheetByName('support'),
                        $col[$index+1].($key+1+$high+1).':'.$col[$index+1].($key+1+$high+1+$thirdNum-1)
                    )
                );
            }
            //定义二级名称
            $objPHPExcel->addNamedRange(
                new \PHPExcel_NamedRange(
                    $first['name'],
                    $objPHPExcel->getSheetByName('support'),
                    $col[1].($key+1+$high).':'.$col[1+$secondNum-1].($key+1+$high)
                )
            );
            $high += $max;
        }
        //移花接木
        foreach ($data as $var=>$content){
            $objPHPExcel->getSheetByName('support')->setCellValue('UI'.($var+1),$content['name']);
        }
        //定义顶级名称
        /*$total = count($data);
        $str = '';
        $count = 0;
        $max = 0;
        for ($i = 0;$i < $total;$i++){
            $str .= $col[0].(1+$count+$i).',';
            $secondCount = count($data[$i]['children']);
            for ($j = 0;$j < $secondCount;$j++){
                if (count($data[$i]['children'][$j]['children']) > $max){
                    $max = count($data[$i]['children'][$j]['children']);
                }
            }
            $count += $max;
        }
        $str = rtrim($str,',');
        $objPHPExcel->addNamedRange(
            new \PHPExcel_NamedRange(
                'region',
                $objPHPExcel->getSheetByName('support'),
                $str
            )
        );*/
        $total = count($data);
        $objPHPExcel->addNamedRange(
            new \PHPExcel_NamedRange(
                'region',
                $objPHPExcel->getSheetByName('support'),
                'UI1'.':'.'UI'.$total
            )
        );

        //数据验证
        for ($i = 2;$i < 10;$i++){
            $objValidation = $objPHPExcel->getActiveSheet()->getCell('A'.$i)->getDataValidation();
            $objValidation->setType(\PHPExcel_Cell_DataValidation::TYPE_LIST );
            $objValidation->setErrorStyle(\PHPExcel_Cell_DataValidation::STYLE_INFORMATION );
            $objValidation->setAllowBlank(false);
            $objValidation->setShowInputMessage(true);
            $objValidation->setShowErrorMessage(true);
            $objValidation->setShowDropDown(true);
            $objValidation->setErrorTitle('输入错误');
            $objValidation->setError('不在列表中的值');
            $objValidation->setPromptTitle('请选择');
            $objValidation->setPrompt('请从列表中选择一个值.');
            $objValidation->setFormula1("=region");

            $objValidation = $objPHPExcel->getActiveSheet()->getCell('B'.$i)->getDataValidation();
            $objValidation->setType(\PHPExcel_Cell_DataValidation::TYPE_LIST );
            $objValidation->setErrorStyle(\PHPExcel_Cell_DataValidation::STYLE_INFORMATION );
            $objValidation->setAllowBlank(false);
            $objValidation->setShowInputMessage(true);
            $objValidation->setShowErrorMessage(true);
            $objValidation->setShowDropDown(true);
            $objValidation->setErrorTitle('输入错误');
            $objValidation->setError('不在列表中的值');
            $objValidation->setPromptTitle('请选择');
            $objValidation->setPrompt('请从列表中选择一个值.');
            $objValidation->setFormula1('=INDIRECT($'.'A'.'$'.$i.')');

            $objValidation = $objPHPExcel->getActiveSheet()->getCell('C'.$i)->getDataValidation();
            $objValidation->setType(\PHPExcel_Cell_DataValidation::TYPE_LIST );
            $objValidation->setErrorStyle(\PHPExcel_Cell_DataValidation::STYLE_INFORMATION );
            $objValidation->setAllowBlank(false);
            $objValidation->setShowInputMessage(true);
            $objValidation->setShowErrorMessage(true);
            $objValidation->setShowDropDown(true);
            $objValidation->setErrorTitle('输入错误');
            $objValidation->setError('不在列表中的值');
            $objValidation->setPromptTitle('请选择');
            $objValidation->setPrompt('请从列表中选择一个值.');
            $objValidation->setFormula1('=INDIRECT($'.'B'.'$'.$i.')');
        }

        $objPHPExcel->setActiveSheetIndex(0);
        //输出表格
        header('Content-Type: application/vnd.ms-excel');
        header('Content-Disposition: attachment;filename='.$subject.''.date('Ymd').'.xlsx');
        header('Cache-Control: max-age=0');
        $objWriter = \PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel2007');
        $objWriter->save('php://output');
    }