如何使用Codeigniter从文件夹中删除文件

Question

While uploading csv file iam saving that file in uploads folder if the file uplaoded successfully into database or not uploaded then also it should be deleted automatically from that folder.Can any one help me regarding this.

$data['error'] = '';      
$config['upload_path'] = './uploads/';
$config['allowed_types'] = 'csv';
$config['max_size'] = '10000';
$this->load->library('upload', $config);

if (!$this->upload->do_upload()) {
  $data['error'] = $this->upload->display_errors();
} 
else {
  $file_data = $this->upload->data();
  $file_path =  './uploads/'.$file_data['file_name'];
  $csv_array = $this->csvimport->get_array($file_path,'',FALSE,0,3,0,$cformat);   

  if ($csv_array) {
    $successflag=true;

    foreach ($csv_array as $row) {
      $order = array(                  
        'department'=>$row['Department'],
        'gender'=>$row['Gender'],             
      );    
      $query = $this->db->query("select count(*) cnt from order_master where order_id='{$order['order_id']}' ");
      $row = $query->first_row();

      if(trim($order['order_id'] )!="" && $row->cnt==0 ) {
        $this->masterorder_model->order($order);             
      }
      else if (  $row->cnt>0) {
        $successflag=false;
        $this->flash->success("<h5><font color='red'>Found Duplicate Order Id'{$order['order_id']}' for order name '$oname'</font></h5>");
        break;
      }    
    }

    if(!$successflag) {
      $this->db->trans_rollback();     
    }
    else {
      $this->db->trans_commit();
      $this->flash->success('<h5>Csv Data Imported Successfully.</h5>');
    }
    redirect(base_url().'masterorder/index');
  }
  else {
    $this->flash->success('<h5><font color="red">Invalid file format.</font></h5>');
    redirect(base_url().'masterorder/index');
  }
}
}

Answer 1

Use unlink() to delete file after processing.

Deletes filename. Similar to the Unix C unlink() function. A E_WARNING level error will be generated on failure.

Answer 2

you can use the file helper for the codeigniter.

So it would be like as below :

$this->load->helper("file");
delete_files($path);

Please visit this for more information.

Answer 3

您可以使用unlink('path/filename' )