codeigniter - codeigniter 照片拇指创建和上传

Question

它给出了空白屏幕：/它上传了第一张图片，没关系。比它调用 _create_thumbnail 并在 "$this->image_lib->resize()" 行给出空白屏幕：/

知道可能是什么问题吗？

谢谢！！

/** * ============================================== ==================== * 上传照片 *
* 拇指 = 210px - 160px * 原始 = 500px - 385px * */

function img_upload() 
{
    $config['upload_path'] = 'uploads/';
    $config['allowed_types'] = 'gif|jpg|jpeg|png';
    $config['max_size'] = '1000';
    $config['max_width'] = '1920';
    $config['max_height'] = '1280';     
    $config['width'] = 500;
    $config['height'] = 385;                

    $this->load->library('upload', $config);

    if(!$this->upload->do_upload()) echo $this->upload->display_errors();
    else {

        $fInfo = $this->upload->data();
        $this->_create_thumbnail($fInfo['file_name']);

        $data['uploadInfo'] = $fInfo;
        $data['thumbnail_name'] = $fInfo['raw_name'] . '_thumb' . $fInfo['file_ext'];

        // set view
        $this->load->view('upload_success', $data); 
    }
}

function _create_thumbnail($fileName) 
{
    $config['image_library'] = 'gd2';
    $config['source_image'] = 'uploads/' . $fileName;   
    $config['create_thumb'] = TRUE;
    $config['maintain_ratio'] = TRUE;
    $config['width'] = 210;
    $config['height'] = 160;

    $this->load->library('image_lib', $config);
    if(!$this->image_lib->resize()) echo $this->image_lib->display_errors();

}

Answer 1

在这里检查你的花括号：

if(!$this->upload->do_upload()) echo $this->upload->display_errors(); else {

看起来您正在混合语法样式。

Answer 2

尝试删除$fileName：

而不是这个：$config['source_image'] = 'uploads/' . $fileName;

用这个：$config['source_image'] = 'uploads/'

Answer 3

尝试这个

function _create_thumbnail($fileName) 
 {
$this->load->library('image_lib');
         $config['image_library'] = 'gd2';
         $config['source_image'] = './uploads/' . $fileName;       
         $config['create_thumb'] = TRUE;
         $config['maintain_ratio'] = TRUE;
         $config['width'] = 210;
         $config['height'] = 160;
         $config['new_image'] = './uploads/'.$fileName;

         $this->image_lib->initialize($config);
         if(!$this->image_lib->resize()) echo
 $this->image_lib->display_errors();

 }