mysql导出为csv一行变两行_php导出excel数据，字段本应该csv一行列出所有字段数据，但是数据跑到第二行或者第三行去了...

class Export_csv{

public function get(){

$str = "项目描述,项目痛点,资源投入,项目关键词,项目收益,团队成员,投入钱财,运营时间,姓名,职位/区域,邮件,手机\n";

$str = iconv('utf-8','gb2312',$str);

$CSVInfo = $this->getCSVInfo();

for($i=0;$i

$title = iconv('utf-8','gb2312',$CSVInfo[$i]['title']);

$des = iconv('utf-8','gb2312',$CSVInfo[$i]['des']);

$ques = iconv('utf-8','gb2312',$CSVInfo[$i]['ques']);

$invest = iconv('utf-8','gb2312',$CSVInfo[$i]['invest']);

$keyword = iconv('utf-8','gb2312',$CSVInfo[$i]['keyword']);

$reward = iconv('utf-8','gb2312',$CSVInfo[$i]['reward']);

$member = iconv('utf-8','gb2312',$CSVInfo[$i]['member']);

$need = iconv('utf-8','gb2312',$CSVInfo[$i]['need']);

$money = iconv('utf-8','gb2312',$CSVInfo[$i]['money']);

$time = iconv('utf-8','gb2312',$CSVInfo[$i]['time']);

$username = iconv('utf-8','gb2312',$CSVInfo[$i]['username']);

$place = iconv('utf-8','gb2312',$CSVInfo[$i]['place']);

$email = iconv('utf-8','gb2312',$CSVInfo[$i]['email']);

$phone = iconv('utf-8','gb2312',$CSVInfo[$i]['phone']);

$str .= $title.",".$des.",".$ques.",".$invest.",".$keyword.",".$reward.",".$member.",".$need.",".$money.",".$time.",".$username.",".$place.",".$email.",".$phone.","."\n";

}

$filename = date('Ymd').'.csv';

$this->out_csv($filename,$str);

}

public function out_csv($filename,$data){

header("Content-type:text/csv");

header("Content-Disposition:attachment;filename=".$filename);

header('Cache-Control:must-revalidate,post-check=0,pre-check=0');

header('Expires:0');

header('Pragma:public');

echo $data;

}

private function getCSVInfo(){

return MySQL::getInstance()->query('select * from ck_plan')->fetchAll(PDO::FETCH_ASSOC);

}

}

如图所示，字段本应该csv一行列出所有字段数据，但是数据跑到第二行或者第三行去了