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$zip_url = "http://www.colorado.edu/conflict/peace/download/peace.zip";
$destination_path = "/var/www/html/files/".uniqid(time(), true)."zip";
file_put_contents($destination_path, fopen($zip_url, 'r'));
//$zip_url will be dynamic zip url and $destination_path will be location on your local machine.
//Note : make sure you've proper permission on destination path folder.