PHP取文件

$f= fopen("D:/tradesns2/public/mail.txt","r");
        $testModel = new Default_Model_Test();
        $i=1;
        $j =1;
        while (!feof($f))
        {
          $line = trim(fgets($f));
          if (!preg_match("/^hr@/i", $line)) {
 //              $count = $testModel->insertMail($line);
            $j++;
          }else{
              $i++;
//              echo "site: ",$line,"<br />";
          }
        }
        echo '共：'.$j.'条数据插入到数据库中<br>';
        echo '共：'.$i.'条重复数据';
        fclose($f);
        
        exit;