CodeIgniter图片上传-无法显示错误消息

问题描述

这是我的上传模型

 函数upload_avatar（）
 {
 $ id = $ this -> tank_auth-> get_user_id（）; 
 
 //配置上传参数并上传图像
 $ config = array（
'allowed_types'=>'jpeg | jpg | png'，
'upload_path' => $ this-> upload_path，
'max_size'=> 2048，
'encrypt_name'=>是，
'overwrite'=>否，
 ）; 
 $ this-> load-> library（'upload'，$ config）; 
 $ this-> upload-> do_upload（）; 
 
 //获取上传数据，配置，调整上传图像的大小，保存在头像子文件夹
 $ image_data = $ this-> upload-> data（）; 
 
 if（$ image_data ['file_size']< 2048）{
 
 $ config = array（
'source_image'=> $ image_data ['full_path ']，
'new_image'=> $ this-> upload_path。'/ avatars'，
'maintain_ratio'=> TRUE，
'width'=> 125，
'height'=> 125 
）; 
 $ this-> load-> library（'image_lib'，$ config）; 
 $ this-> image_lib-> resize（）; 
 
 //只有在没有上传错误的情况下才烧录头像到user_profiles表
 if（！$ this-> upload-> display_errors（））{
 $ data = array （'avatar'=> base_url（）。'images / avatars /'。$ image_data ['file_name']））; 
 $ this-> db-> where（'id'，$ id）; 
 $ this-> db-> update（'user_profiles'，$ data）; 
} 
 
 //从服务器
中删除原始文件$ this-> load-> helper（’file’）; 
 unlink（$ image_data [’full_path']）; 
 
} else {
 
 echo $ this-> upload-> display_errors（）; 
 
} 
} 
  

我找不到错误

公平地说，CI会忽略此大文件，而当文件小于<时正确上传。 2MB。

唯一的是我无法让错误消息显示在前端，无法为suer提供一些反馈。

有什么想法吗？

解决方案

  $ config ['upload_path'] ='上传/类别/'.$id.'/'; 
 //回显$ file_name; die; 
 // echo $ config [’upload_path’]; 
 $ config [’allowed_types’] =‘gif | jpg | jpeg | png’； 
 $ config ['max_size'] ='2048'; 
 $ config [‘max_width’] =‘1920’； 
 $ config [‘max_height’] =‘1280’； 
 $ this-> load-> library（‘upload’）； 
 foreach（$ _FILES as $ key => gt; $ value）{
 // print_r（$ key）; 
 
 if（！empty（$ key [’name’]））{
 
 $ this-> upload-> initialize（$ config）; 
 if（！$ this-> upload-> do_upload（$ key））{
 // echo‘test’; die; 
 // rmdir（’uploads / category /’.$ id）; 
 $ errors = $ this-> upload-> display_errors（）; 
 flashMsg（$ errors）; 
} 
} 
} 
  

尝试一下！ p>

This is my upload model

    function upload_avatar()
    {
        $id = $this->tank_auth->get_user_id();

        //config upload parameters and upload image
        $config = array(
            'allowed_types' => 'jpeg|jpg|png',
            'upload_path' => $this->upload_path,
            'max_size' => 2048,
            'encrypt_name' => TRUE,
            'overwrite' => FALSE,
        );
        $this->load->library('upload', $config);
        $this->upload->do_upload();

        //get upload data, config, resize uploaded image, save in avatars subfolder
        $image_data = $this->upload->data();

        if ($image_data['file_size'] < 2048) {

            $config = array(
                'source_image' => $image_data['full_path'],
                'new_image' => $this->upload_path . '/avatars',
                'maintain_ratio' => TRUE,
                'width' => 125,
                'height' => 125
            );
            $this->load->library('image_lib', $config);
            $this->image_lib->resize();

            //only burn avatar path to user_profiles table if no upload errors
            if (!$this->upload->display_errors()) {
                $data = array('avatar' => base_url() . 'images/avatars/' . $image_data['file_name']);
                $this->db->where('id', $id);
                $this->db->update('user_profiles', $data);
            }

            //delete the original file from server
            $this->load->helper('file');
            unlink($image_data['full_path']);

        } else {

    echo $this->upload->display_errors();

        }
    }

I can't get the error message to echo straight to the browser when I try uploading a file > 2MB.

To be fair, CI ignores this large file, and uploads correctly when a file is < 2MB.

The only thing is that I can't get the error message to show on the front-end to give the suer some feedback.

Any ideas what's wrong here?

解决方案

$config['upload_path'] = 'uploads/category/'.$id.'/';
        //echo $file_name;die;
        //echo $config['upload_path'];
        $config['allowed_types'] = 'gif|jpg|jpeg|png';
        $config['max_size'] = '2048';
        $config['max_width'] = '1920';
        $config['max_height'] = '1280';
        $this->load->library('upload');
         foreach ($_FILES as $key => $value) {
            //print_r($key);

            if (!empty($key['name'])) {

                $this->upload->initialize($config);
                if (!$this->upload->do_upload($key)) {
                  // echo 'test';die;
//                    rmdir('uploads/category/'.$id);
                    $errors = $this->upload->display_errors();
                    flashMsg($errors);
                }
}
}

try this!!

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