Coordinator : GD library already installed on server but show 你的服务器不支持处理此类图像所需的GD功能

Question

我已经在服务器上安装了 GD 库，但是如果我上传 jpg,png,jpeg 图片格式的图片，则会显示错误 "Your server does not support the GD function required to process this type of image." 如果安装了 GD 库，为什么会显示这些类型的错误？

$config['upload_path'] = $this->upload_path;
$config['allowed_types'] = $this->image_types;
$config['max_size'] = $this->allowed_file_size;
$config['max_width'] = $this->Settings->iwidth;
$config['max_height'] = $this->Settings->iheight;
$config['overwrite'] = FALSE;
$config['encrypt_name'] = TRUE;
$config['max_filename'] = 25;                
$this->upload->initialize($config);

if (!$this->upload->do_upload('product_image')) {
    $error = $this->upload->display_errors();
    $this->session->set_flashdata('error', $error);

   redirect("products/edit/" . $id);
}

$photo = $this->upload->file_name;
$data['image'] = $photo;
$this->load->library('image_lib');
$config['image_library'] = 'gd2';
$config['source_image'] = $this->upload_path . $photo;
$config['new_image'] = $this->thumbs_path . $photo;
$config['maintain_ratio'] = TRUE;
$config['width'] = $this->Settings->twidth;
$config['height'] = $this->Settings->theight;

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

Answer 1

您正在传递 $this->upload->file_name 未知值。 GD库找不到您要传递给 $photo 进行验证的 string/object 的图像格式和扩展名。

您应该使用 $this->upload->data() 来捕获上传的图像值，如下所示。

$config = [
    'upload_path' => $this->upload_path, // make sure you are adding tailing `/` in your upload path, else you should add `/` before joing the images below
    'allowed_types' => $this->image_types,
    'max_size' => $this->allowed_file_size,
    'max_width' => $this->Settings->iwidth,
    'max_height' => $this->Settings->iheight,
    'overwrite' => false,
    'encrypt_name' => true,
    'max_filename' => 25
];
$this->load->library('upload', $config);  // make sure you are loading the `upload` library, else it will load
$this->upload->initialize($config);             
if($this->upload->do_upload('product_image')){  
    $uploaded_data = $this->upload->data(); // here you should collect the uploaded data    
    $data['image'] = $uploaded_data['file_name'];   
    $config = [
        'image_library' => 'gd2',
        'source_image' => $this->upload_path . $uploaded_data['file_name'],
        'new_image' => $this->thumbs_path . $uploaded_data['file_name'],
        'maintain_ratio' => true,
        'width' => $this->Settings->twidth,
        'height' => $this->Settings->theight,
        'quality' => '100%',
    ];
    $this->load->library('image_lib', $config);
    $this->image_lib->initialize($config);
    if ($this->image_lib->resize()){
        return true;
    }else{
        return $this->image_lib->display_errors();
    }   
}else{
    $this->session->set_flashdata('error', $this->upload->display_errors());
    redirect("products/edit/" . $id);
}

Coordinator : GD library already installed on server but show 你的服务器不支持处理此类图像所需的GD功能

Coordinator : GD library already installed on server but show Your server does not support the GD function required to process this type of image

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