phpcodeigniterfile-uploadcodeigniter-3
How to upload file without form some url to my directory in codeigniter?
I set login with google on my website and google get me some url like 
So I do not have a form then how do I upload this url image to my directory?
I have no resources from any site for this issue.
Solution
Without using CI libaray.Lets try...
$url = 'https://lh3.googleusercontent.com/-MzgndtILI5I/AAAAAAAAAAI/AAAAAAAAAAs/qB7MkGWroIY/photo.jpg';
/* Extract the filename */
$filename = substr($url, strrpos($url, '/') + 1);
/* Save file wherever you want */
file_put_contents('upload/'.$filename, file_get_contents($url));
Also take reference from here... Saving image from PHP URL and Uploading image with url address in Codeigniter
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