Upload file from URL

Question

I've been trying to figure out how to upload a file from a URL using the following code without using a form. In a form I can enter in a URL instead of a local file on the computer and it uploads it, So im guessing its possible?:

example location: http://www.bubblews.com/assets/images/news/521013543_1385596410.jpg

if ((isset($_FILES['upload']['name'])) && (substr_count($_FILES['upload']['type'],'image/'))) {

    $prefix = "market/".$market->guid;      
    $filehandler = new ElggFile();
    $filehandler->owner_guid = $market->owner_guid;
    $filehandler->setFilename($prefix . ".jpg");
    $filehandler->open("write");
    $filehandler->write(get_uploaded_file('upload'));
    $filehandler->close();

Downloading a remote file to your server (aka URL upload) is very different from local file upload. A good solution using curl can be found here: http://stackoverflow.com/questions/6348602/download-remote-file-to-server-with-php — Aurel Bílý, Mar 01 '14 at 19:35

score 5 · Answer 1 · edited May 23 '17 at 11:49

5

Try this example:

Saving image from PHP URL

$ch = curl_init('http://example.com/image.php');
$fp = fopen('/my/folder/flower.gif', 'wb');
curl_setopt($ch, CURLOPT_FILE, $fp);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_exec($ch);
curl_close($ch);
fclose($fp);

or this

$url = 'http://example.com/image.php';
$img = '/my/folder/flower.gif';
file_put_contents($img, file_get_contents($url));

edited May 23 '17 at 11:49

Community

1
1

answered Mar 01 '14 at 19:36

Hunter Mitchell

7,063
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score -5 · Answer 2 · answered Mar 01 '14 at 19:37

-5

In linux hosts you can try

exec("wget ".$_POST['url']);

answered Mar 01 '14 at 19:37

Xtoxico

6
2

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Running exec is a really bad idea especially with untrusted post data. – The Unknown Dev Jan 13 '17 at 17:34
Very bad.. anyone on the internet could post to that page and force your server to download and execute a malicious file hosted anywhere in the world.. – Deftwun Oct 31 '18 at 08:16
most of shared hosting doesn't allow exec command – msalihbindak Mar 17 '22 at 11:13
Very bad advice from a Linux SysAd – phagento Jan 05 '23 at 12:50

Upload file from URL

2 Answers2