CodeIgniter不保存圖像

Question

我試圖從URL中獲取熊的圖片並將其保存爲aabear.jpg。但是，我的代碼失敗了。哪裏不對？

$config['image_library'] = 'gd2'; 
$config['source_image'] = 'http://thejuxtapositionape.blog.com/files/2012/03/polar-bear-pup.jpg'; 
$config['create_thumb'] = TRUE; 
$config['maintain_ratio'] = TRUE; 
$config['width']  = 75; 
$config['height'] = 50; 
$config['new_image'] = 'aabear.jpg'; 

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

Answer 1

似乎像圖像庫只將本地文件作爲輸入。

使用polar-bear-pup.jpg計算出