codeigniter调整大小图像并创建缩略图
hi根据ci文档,您可以使用image_lib调整图片大小,并且有一些选项建议我们可以从该图片创建其他缩略图。
hi according to the ci document you can resize images with image_lib and there are options that suggest we can create additional thumbnail from that image
create_thumb FALSE TRUE/FALSE (boolean) Tells the image processing function to create a thumb. R
thumb_marker _thumb None Specifies the thumbnail indicator. It will be inserted just before the file extension, so mypic.jpg would become mypic_thumb.jpg R
这是我的代码
$config_manip = array(
'image_library' => 'gd2',
'source_image' => "./uploads/avatar/tmp/{$this->input->post('new_val')}",
'new_image' => "./uploads/avatar/{$this->input->post('new_val')}",
'maintain_ratio'=> TRUE ,
'create_thumb' => TRUE ,
'thumb_marker' => '_thumb' ,
'width' => 150,
'height' => 150
);
$this->load->library('image_lib', $config_manip);
$this->image_lib->resize();
我会假设这段代码调整我的图片大小,并创建一个缩略图,指定的维度和_tump postfix
i would assume this code resizes my image and also creates a thumbnail , but i only get one image with specified dimensions and _tump postfix
我也试图添加这个代码来手动创建第二个图像,但仍然无法正常工作,我只得到一个图像
i've also tried to add this code to create second image manually but still it doesn't work and i get only one image
$this->image_lib->clear();
$config_manip['new_image'] =
"./uploads/avatar/thumbnail_{$this->input->post('new_val')}";
$config_manip['width'] = 30 ;
$config_manip['height'] = 30 ;
$this->load->library('image_lib', $config_manip);
$this->image_lib->resize();
似乎path是你的代码中的问题。我修改并测试自己的工作原理。
It seems path is the issue in your code. I modified and tested myself it works.
public function do_resize()
{
$filename = $this->input->post('new_val');
$source_path = $_SERVER['DOCUMENT_ROOT'] . '/uploads/avatar/tmp/' . $filename;
$target_path = $_SERVER['DOCUMENT_ROOT'] . '/uploads/avatar/';
$config_manip = array(
'image_library' => 'gd2',
'source_image' => $source_path,
'new_image' => $target_path,
'maintain_ratio' => TRUE,
'create_thumb' => TRUE,
'thumb_marker' => '_thumb',
'width' => 150,
'height' => 150
);
$this->load->library('image_lib', $config_manip);
if (!$this->image_lib->resize()) {
echo $this->image_lib->display_errors();
}
// clear //
$this->image_lib->clear();
}
希望这可以帮助你。谢谢!
Hope this helps you. Thanks!!