2,文件上传类:
public function img_upload()
{ $this->load->helper('url'); $config['upload_path'] = './images/'.date('ym', time()).'/';
$config['allowed_types'] = 'gif|jpg|png'; $config['file_name'] = date('y_m_d', time()).'_'.sprintf('%02d', rand(0,99)); $config['max_size'] = '500'; $config['max_width'] = '1024'; $config['max_height'] = '768'; $this->load->library('upload', $config);
if ( !$this->upload->do_upload())
{ $error = array('error' => $this->upload->display_errors()); } else { $data = array('upload_data' => $this->upload->data()); }}
复制代码
需要用到的函数:$this->upload->do_upload():根据偏好配置参数执行操作。注意:默认情况下上传的文件来自于提交表单里名为userfile的文件域,并且该表单必须是 multipart类型。$this->upload->display_errors():如果do_upload()返回失败,显示错误信息。此函数不会自动输出,而是返回数据,所以你可以按你的要求安排。$this->upload->data():辅助函数,它返回上传文件的所有相关信息的数组。
