How to implement batch upload of data to database in php

The following editor will bring you a case of batch uploading data to the database (.csv format) in PHP. The editor thinks it’s pretty good, so I’ll share it with you now and give it as a reference. Let’s follow the editor and take a look.

Friendly reminder: The document for uploading data needs to be converted into a .csv format document

Front-end code:

<form name="importForm" action="import.php" method="POST" enctype="multipart/form-data"> 
<input type="hidden" value="import_goods" name="file"> 
  <table cellpadding="2" cellspacing="1" class="tb"> 
    <tbody> 
    <tr> 
      <td width="200">选择批量上传文档：</td> 
      <td><input type="file" name="upfilename" id="upfilename" value=""></td> 
    </tr> 
    <tr> 
      <td colspan="2"> 
        <input type="submit" name="submit" value="提交" class="btn"> 
      </td> 
    </tr> 
    </tbody> 
  </table> 
</form>

Back-end code: import.php file(Only the main code is pasted here, the specific implementation method requires Complete it yourself)

if(isset($_POST['submit'])){ 
      stripos(PHP_OS, "WIN") !== false ? setlocale(LC_ALL, '') : setlocale(LC_ALL,'zh_CN.GBK'); 
       
      $fext = substr($_FILES['upfilename']['name'], strrpos($_FILES['upfilename']['name'], '.') + 1); 
      if ($fext != 'csv') { 
        die('请上传csv格式的文件',HTTP_REFERER); 
      } 
      $handle = @fopen($_FILES['upfilename']['tmp_name'], "rb"); 
   
      $i = 0; 
      $import_type = ''; 
      if ($handle) 
      { 
        while($line_data = fgetcsv($handle, 4096, ',')) 
        { 
          if ($i == 0) { 
            $import_type = trim($line_data[0]); 
            $i = 1; 
          } elseif (intval($line_data[0])) { 
            $line_list[] = $line_data; 
          } 
        } 
      } 
      //循环转换数据格式 
      foreach ($line_list as $i=> $v) 
      { 
        foreach ($v as $j=> $value) 
        { 
          $line_list[$i][$j] = iconv('GBK', 'UTF-8//IGNORE',$line_list[$i][$j]); 
        } 
      }//编码转换 
       
      fclose($handle); 
 
      if(!empty($line_list)) 
      { 
        // 登记号 
        $sn = array(); 
        $top_catid = 0; 
        $name = ''; 
        $func_name = ''; 
        switch ($import_type) { 
          case 'patent'; 
          $top_catid = 5; 
          $name = '专利申请号'; 
          $func_name = 'deal_import_patent'; 
          break; 
          case 'trademark'; 
          $top_catid = 4; 
          $name = '商标注册号'; 
          $func_name = 'deal_import_trademark'; 
          break; 
          case 'copyright'; 
          $top_catid = 2185; 
          $name = '登记号'; 
          $func_name = 'deal_import_copyright'; 
          break; 
          default: 
            die('上传文档未明确指定知产类型！'); 
          break; 
        } 
        if ($import_type == 'patent') { 
          foreach($line_list as $lkey => $lval) { 
            $lval[2] = trim($lval[2]); 
            if ($lval[2] == '专利技术') { 
              // 技术专利 
              if(!empty($lval[1])) { 
                if(in_array($lval[1],$sn)) 
                { 
                  die('列表中序号为'.$lval[0].'的知产的'.$name.$lval[1].'与前面的出现重复！');//判断是否有重复的数据（根据自己所需判断） 
                } 
                $sn[] = trim($lval[1]); 
              } else { 
                die('列表中序号为'.$lval[0].'的知产的'.$name.'为空！'); 
              } 
            } else { 
              // 非技术专利 
              $line_list[$lkey][1] = ''; 
            } 
          } 
        } elseif ($import_type == 'trademark') { 
          foreach($line_list as $lkey => $lval) { 
            if(!empty($lval[1])) { 
              if(in_array($lval[1],$sn)) 
              { 
                die('列表中序号为'.$lval[0].'的知产的'.$name.'与前面的出现重复！'); 
              } 
              $sn[] = $lval[1]; 
            } else { 
              die('列表中序号为'.$lval[0].'的知产的'.$name.'为空！'); 
            } 
          } 
        } 
        if (!empty($sn)) { 
          $sql = 'SELECT serial_number FROM ' .$table_name. ' WHERE top_catid = '.$top_catid.' AND serial_number IN (\'' .implode("','", $sn). '\')'; 
          $result = $goods_db->query($sql); 
          $r = $goods_db->fetch_array(); 
          $exist = array(); 
          foreach ($r as $k=>$v){ 
            $exist[] = $v['serial_number']; 
          } 
           
          if (!empty($exist)) die($name.'为：'.implode(',',$exist).'的知产已存在');//数据库中是否有相同的数据（根据自己所需判断） 
        }     
        // 调用处理函数 
        self::$func_name($line_list);//此时$line_list即为你上传文档的数据，数组格式，根据自己所需将数据导入数据库 
        die('批量导入完成！'); 
      } 
       
    }

. The format of the .csv document is:

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