PHP导出excel CSV(前后分离)

Posted 2021-06-02 满眼都是她

CSV优势：导入导出速度快

　　缺点：不能倒入图片等

 

一、前后分离，给前端url

 

public function excel()
    {
        //头部字段
        $headlist = [\'name\'=>\'名字\',\'score\'=>\'得分\'];

        //主体内容
        $data = [
            [\'name\' => \'张三\', \'score\' => \'80\'],
            [\'name\' => \'李四\', \'score\' => \'90\'],
            [\'name\' => \'王五\', \'score\' => \'60\'],
        ];

        $fileName = "导出表格.csv";
        $file_path = "uploads/csv/";
        if (!file_exists($file_path)) {
            mkdir($file_path, 0777, true);
        }
        $file_path = "/uploads/csv/" . $fileName;
        $fp        = fopen("." . $file_path, "w");

        //输出Excel列名信息
        foreach ($headlist as $key => $value) {
            //CSV的Excel支持GBK编码，一定要转换，否则乱码
            $headlist[$key] = iconv(\'utf-8\', \'gbk\', $value);
        }

        //将数据通过fputcsv写到文件句柄
        fputcsv($fp, $headlist);

        //计数器
        $num = 0;

        //每隔$limit行，刷新一下输出buffer，不要太大，也不要太小
        $limit = 100000;

        //逐行取出数据，不浪费内存
        $count = count($data);
        for ($i = 0; $i < $count; $i++) {

            $num++;

            //刷新一下输出buffer，防止由于数据过多造成问题
            if ($limit == $num) {
                ob_flush();
                flush();
                $num = 0;
            }

            $row = $data[$i];
            foreach ($row as $key => $value) {
                $row[$key] = iconv(\'utf-8\', \'gbk\', $value);
            }

            fputcsv($fp, $row);
        }
        return ["code" => 1, "msg" => "获取成功", "url" => $_SERVER[\'HTTP_HOST\'] . $file_path];
    }

 

 

二、直接输出浏览器

 

    public function excel(){
        //头部字段
        $headlist = [\'name\'=>\'名字\',\'score\'=>\'得分\'];

        //主体内容
        $data = [
            [\'name\' => \'张三\', \'score\' => \'80\'],
            [\'name\' => \'李四\', \'score\' => \'90\'],
            [\'name\' => \'王五\', \'score\' => \'60\'],
        ];
        $fileName = \'导出\';
        header(\'Content-Type: application/vnd.ms-excel\');
        header(\'Content-Disposition: attachment;filename="\'.$fileName.\'.csv"\');
        header(\'Cache-Control: max-age=0\');

        //打开php文件句柄,php://output 表示直接输出到浏览器
        $fp = fopen(\'php://output\', \'a\');

        //输出Excel列名信息
        foreach ($headlist as $key => $value) {
            //CSV的Excel支持GBK编码，一定要转换，否则乱码
            $headlist[$key] = iconv(\'utf-8\', \'gbk\', $value);
        }

        //将数据通过fputcsv写到文件句柄
        fputcsv($fp, $headlist);

        //计数器
        $num = 0;

        //每隔$limit行，刷新一下输出buffer，不要太大，也不要太小
        $limit = 100000;

        //逐行取出数据，不浪费内存
        $count = count($data);
        for ($i = 0; $i < $count; $i++) {

            $num++;

            //刷新一下输出buffer，防止由于数据过多造成问题
            if ($limit == $num) {
                ob_flush();
                flush();
                $num = 0;
            }

            $row = $data[$i];
            foreach ($row as $key => $value) {
                $row[$key] = iconv(\'utf-8\', \'gbk\', $value);
            }

            fputcsv($fp, $row);
        }
    }