PHP：通过其URL下载图像并提示用户保存

Question

Whats the best what to enable a user to click a download button that then automatically gets a image file and then downloads it to their generic downloads folder or prompts them to save it?

i have tried the following but with no success:

  $file = $art[0]['location']; // this is the full url to image http://....image.jpg
  $ch = curl_init();
  curl_setopt($ch, CURLOPT_POST, 0); 
  curl_setopt($ch,CURLOPT_URL, $file); 
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); 
  $file_content = curl_exec($ch);
  curl_close($ch);

ect or am i going about this all wrong (probably)

thanks

Answer 1

Before you echo the data:

header('Content-Disposition: attachment; filename=save_as_name.jpg');

Then

echo file_get_contents("http://...");