Uploading Photos from Hard Drive to Facebook using the API - php

Question

wondering if anyone can help me. I've been searching for a few days for help on how to publish photos to Facebook using the API. I came across the following script that seems to work for everyone however I am unsure how to connect this to a form where users can select the photo from their hard drive and upload it. Can anyone point me in the right direction?
PHP Code:
$token = $session['access_token'];
$file= 'photo.jpg';
$args = array(
'message' => 'Photo from application',
);
$args[basename($file)] = '#' . realpath($file);
$ch = curl_init();
$url = 'https://graph.facebook.com/me/photos?access_token='.$token;
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_HEADER, false);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $args);
$data = curl_exec($ch);
Code for the form:
<form action="<?=$PHP_SELF;?>" enctype="multipart/form-data" method="POST">
<input name="MAX_FILE_SIZE" type="hidden" value="10000000" />
<input id="file" name="file" type="file" />
<input name="submit" type="submit" value="Upload" />
</form>

Answer 1

Clark,
The php script receives the file and its details in the $_FILES variable.
For Eg. If you are uploading a file names Image1.jpg then the $_FILES array would have the following values
array(1) {
["file"]=> array(5) {
["name"]=> string(21) "Image1.jpg"
["type"]=> string(10) "image/jpeg"
["tmp_name"]=> string(23) "C:\wamp\tmp\phpD1DF.tmp
["error"]=> int(0)
["size"]=> int(355315)
}
}
Here, name = actual file name
type = file type
tmp_name = path of the temp location where the file is uploaded on the server
size = file size
For uploading the file to facebook the values that you should be interested in the "name" and the "tmp_name".
So the arguments that you should send to facebook for the photo upload should look something like this
$args = array(
'message' => 'Photo from application',
);
$args[$_FILES['file']['name']] = '#' . $_FILES['file']['tmp_name'];
I think this should work for you.
Btw, i checked out the facebook doc for photo upload # http://developers.facebook.com/docs/reference/api/photo they say the file name should be passed in the param "source", so if the above arguments dont work for you, you can try
$args = array(
'message' => 'Photo from application',
'source' => '#' . $_FILES['file']['tmp_name']
);
Give it a try :)
Hope this helps.