Question

我是CodeIgniter的新手。这就是我想做的：

将产品图片的尺寸调整为350 * 250、50 * 50和原始图片，同时从管理员上载添加产品中的图片。

所有这三个图像都位于三个不同的文件夹中。

这是我的代码-

public function products()
{
    $config=array();
    $config['upload_path']="./uploads/";
    $config['allowed_types']="jpg|jpeg|gif|png";
    $this->load->library('upload',$config);
    $this->upload->initialize($config);
    if ( ! $this->upload->do_upload('userfile')) 
    {
        $error = array('error' => $this->upload->display_errors());                
    }
    else 
    {              
        $file_data = $this->upload->data();
        $data1['img']=base_url().'images/'.$file_data['file_name'];
        $data_image = array(
                'agenda_id' => $this->input->post('agenda_id'),
                'file'      => $file_data['file_name']
        );

      $config['image_library']='gd2';
      $config['source_image']='./uploads/'.$file_data["file_name"];
      $config['create_thumb']=FALSE;
      $config['maintain_ratio']=FALSE;
      $config['quality']='60%';                   
      $config['width']=350;
      $config['height']=250;
      $config['new_image']='./uploads350/'.$file_data["file_name"];
      $this->upload->initialize($config);
      $this->load->library('image_lib',$config);
      $this->image_lib->resize();
     }  
     $this->load->model("Admin_model");
     $data= array(
       "Type" =>$this->input->post("Type"),
       "Brand" =>$this->input->post("Brand"),
       "Product_Name" =>$this->input->post("Product_Name"),
       "Price" =>$this->input->post("Price"),
       "Image"=>$data_image['file']

    );
    $this->Admin_model->admin($data);

    $this->session->set_flashdata('message', 'Product added successfully');

    redirect('Admin/product_list');    
}

Answer 1

这应该可以正常工作（未经测试）。只要确保文件夹存在。另外，如果我是你，我可能会将所有内容都保留在同一文件夹中，而只需在some_image_50.jpg之类的后缀后面加上

public function products() {
        $config = array();
        $config['upload_path'] = "./uploads/";
        $config['allowed_types'] = "jpg|jpeg|gif|png";
        $this->load->library('upload', $config);
        $this->upload->initialize($config);
        if (!$this->upload->do_upload('userfile')) {
            $error = array('error' => $this->upload->display_errors()); // do something with this...
            // e.g. show_error($this->upload->display_errors());
        } else {
            $file_data = $this->upload->data();
            $data1['img'] = base_url() . 'images/' . $file_data['file_name'];
            $data_image = array(
                'agenda_id' => $this->input->post('agenda_id'),
                'file' => $file_data['file_name']
            );
            //$config['image_library'] = 'gd2'; (default; not needed)
            $this->load->library('image_lib');
            $cfg['source_image'] = './uploads/' . $file_data["file_name"];
            $cfg['create_thumb'] = FALSE;
            $cfg['maintain_ratio'] = FALSE;
            $cfg['quality'] = '60%';
            $cfg['width'] = 350;
            $cfg['height'] = 250;
            $cfg['new_image'] = './uploads350/' . $file_data["file_name"];
            //$this->upload->initialize($config); why??
            $this->image_lib->initialize($cfg);
            $this->image_lib->resize();
            // the following vars will override certain vars above and keep the ones we haven't overridden
            $cfg['width'] = 50;
            $cfg['height'] = 50;
            $cfg['new_image'] = './uploads50/' . $file_data["file_name"]; // make sure folder exists
            $this->image_lib->initialize($cfg);
            $this->image_lib->resize();
        }
        $this->load->model("Admin_model");
        $data = array(
            "Type" => $this->input->post("Type"),
            "Brand" => $this->input->post("Brand"),
            "Product_Name" => $this->input->post("Product_Name"),
            "Price" => $this->input->post("Price"),
            "Image" => $data_image['file']
        );
        $this->Admin_model->admin($data);

        $this->session->set_flashdata('message', 'Product added successfully');

        redirect('Admin/product_list');
    }

Codeigniter将单个图像转换为多种尺寸，即350 * 250、50 * 50和原始尺寸

1 个答案: