php導出csv格式數據,以及將數字轉換成文本解決辦法

php導出csv格式數據實現：
先定義一個字符串 存儲內容，例如
 $exportdata = '規則111,規則222,審222,規222,服2222,規則1,規則2,規則3,匹配字符,設置時間,有效期'."\n";

然後對需要保存csv的數組進行foreach循環，例如

              if (!empty($lists)){
                  foreach($lists as $key => $value){
                    $time = date("Y-m-d_H:i:s", $value['add_time']);
                    $exportdata .= "\"\t".$value['Rule_id']."\",\"\t".$value['Rule_name']."\",\"\t".$value['Matching_level']."\",\"\t"."{$value['Rule_action']}"."\",\"\t".$value['Service_type']."\",\"\t".$value['Keyword1']."\",\"\t".$value['Keyword2']."\",\"\t".$value['Keyword3']."\",\"\t".$value['Matching_word']."\",\"\t".$value['Set_time']."\",\"\t".$value['Validation_time']."\"\n";
                  }
              }

csv格式的內容用','隔開，在現實的時候就能分格了。每一行後面就一個'\n'就能分行了。

然後在後面執行輸出就行了。例如

              $filename = "plcnetinfo_{$date}.csv";
            
              header("Content-type:application/vnd.ms-excel");
              header("Content-Disposition: attachment; filename=$filename");

              header("Expires: 0");
              header("Pragma: public");
              header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
              header("Cache-Control: public");
     
              echo(mb_convert_encoding($exportdata,"gb2312","UTF-8"));

但是在導出數字的時候csv就會把前面的0去掉，例如 我想顯示 00001   ，如果輸出的話就會顯示1.這種解決辦法就是在輸出的時候就一個'\"\t',這個是制表符，會顯示成空格。就能把數值轉化成文本了。不過在導入的時候會出現'"    '.這種東西，用一下php自帶的trim函數就好了。完整代碼如下：

              //var_dump($sql);
              $lists = $this->dbo->query($sql);

 　　　　  $exportdata = '規則111,規則222,審222,規222,服2222,規則1,規則2,規則3,匹配字符,設置時間,有效期'."\n";
              $date = date("YmdHis");
              if (!empty($lists)){
                  foreach($lists as $key => $value){
                    $time = date("Y-m-d_H:i:s", $value['add_time']);
                    $exportdata .= "\"\t".$value['Rule_id']."\",\"\t".$value['Rule_name']."\",\"\t".$value['Matching_level']."\",\"\t"."{$value['Rule_action']}"."\",\"\t".$value['Service_type']."\",\"\t".$value['Keyword1']."\",\"\t".$value['Keyword2']."\",\"\t".$value['Keyword3']."\",\"\t".$value['Matching_word']."\",\"\t".$value['Set_time']."\",\"\t".$value['Validation_time']."\"\n";
                  }
              }
              $filename = "plcnetinfo_{$date}.csv";
            
              header("Content-type:application/vnd.ms-excel");
              header("Content-Disposition: attachment; filename=$filename");

              header("Expires: 0");
              header("Pragma: public");
              header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
              header("Cache-Control: public");
     
              echo(mb_convert_encoding($exportdata,"gb2312","UTF-8"));