Imagine there is a picture at http://example.com/icon.jpg and I want to add it to a zip file on my own sever named "Stack.zip" using php. This is my code, but it doesn't work.
$url="http://example.com/icon.jpg"
$zip = new ZipArchive;
echo $zip->open("Stack.zip");
$zip->addFile($url);
$zip->close();
P.S. I was able to do it with local files, but I had no success on doing it with internet addresses. So that's why I asked this question.