Reputation: 948
When sharing link on Facebook, Facebook get Title,Meta Description and Image from given link.
I have no idea how they get the image. I search on the internet as well as, but I could n't find a way.
How to get image thumbnail from given URL?
Upvotes: 2
Views: 3565
Reputation: 1868
Well, save file to your server using file_put_contents(), and then you can create thumbnail. you can't get thumbnail directly from url.
Save file like this :
$url = 'http://example.com/image.ext';
$img = 'yourImgNameOrWithPath.ext';
file_put_contents($img, file_get_contents($url));
Create thumbnail using following code :
function createThum($filename,$thumb_width,$thumb_height,$destination)
{
$my_input_file = $filename;
$my_output_file = $destination;
$jpeg_quality = 100;
$size = getimagesize($my_input_file);
//$thumb_width = ($size[0] / $size[1]) * $thumb_height;
$src_img = imagecreatefromjpeg($my_input_file);
$dst_img = imagecreatetruecolor($thumb_width,$thumb_height);
imagecopyresampled($dst_img, $src_img, 0, 0, 0, 0, $thumb_width, $thumb_height, $size[0], $size[1]);
imagejpeg($dst_img, $my_output_file, $jpeg_quality);
imagedestroy($src_img);
imagedestroy($dst_img);
return true;
}
Upvotes: 1