Question

/srv/www

变量public function ExportCSV() { // THIS PART IS WORKING $this->load->dbutil(); $this->load->helper('file'); $delimiter = ','; $newline = "\n"; $enclosure = '"'; $filename = "tamp.csv"; $query = "SELECT politician.id, politician.ident, party.abbr, politician.id_image, politician.name, politician.surname, politician.personal_birth, politician.home_city, politician.political_function FROM politician INNER JOIN party WHERE party.id = politician.id_party LIMIT 10000"; $result = $this->db->query($query); $data = $this->dbutil->csv_from_result($result, $delimiter, $newline, $enclosure); // data IS CORRECT // THIS PART NOT WORKING: write_file() returns false if ( ! write_file(APPPATH."/assets/media/upload/tamp.csv", $data, 'r+')) { echo 'Unable to write the file'; } else { echo 'File written!'; } }包含正确的输出，但$data返回write_file()。

目录false位于codeigniter项目的主目录中。

我的问题是：

此函数是否返回false，因为我没有权限在此目录中写入？
- 如果是，我该怎么办？
我应该在哪个目录中编写此文件，因为我希望将其公开？

Answer 1

使用write_file创建文件时，请确保您的文件夹/目录位于您要创建文件的位置

然后我建议使用FCPATH $ data =＆＃34;一些文件数据＆＃34 ;;

 if (write_file(FCPATH . '/document/text.txt', $data) == FALSE)
 {
     echo 'Unable to write the file';

 } else {
     echo 'File written!';                           
 }

我的目录应用

 document

 system

 index.php

Codeigniter：write_file（）返回false

1 个答案: