IMGUR file upload via PHP and cURL

I'm trying to upload an image to IMGUR via PHP. This is the code:

<?
$filename = "image.jpg";
$handle = fopen($filename, "r");
$data = fread($handle, filesize($filename));

// $data is file data
$pvars   = array('image' => base64_encode($data), 'mykey' => IMGUR_API_KEY);
$timeout = 30;
$curl    = curl_init();

curl_setopt($curl, CURLOPT_URL, 'http://api.imgur.com/2/upload.xml');
curl_setopt($curl, CURLOPT_TIMEOUT, $timeout);
curl_setopt($curl, CURLOPT_POST, 1);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
curl开发者_运维百科_setopt($curl, CURLOPT_POSTFIELDS, $pvars);

$xml = curl_exec($curl);

curl_close ($curl);

?>

This is the error message I receive:

Warning: fopen(image.jpg) failed to open stream: No such file or directory

I don't understand the part: $filename = "image.jpg"; Where does the filename come from since it's a base64 generated string? Thanks, Bob

That warning is because fopen is trying to read in the file image.jpg from the directory from which your script is running. A good example on how to transfer a file through curl can be seen here

Send file via cURL from form POST in PHP

Where they have $localFile = $_FILES[$fileKey]['tmp_name']; you would put $localFile = '/path/to/image.jpg'; As well as change the server info and add in any other variables you may need to pass to imgur.

Change line 1 from:

$filename = "image.jpg";

To:

$filename = $_FILES['uploaded_file']['tmp_name'];

Then, to post... I recommend a form similar to this:

    <form enctype="multipart/form-data" method="post" action="upload.php" target="my_iframe">
    Choose your file here:
    <input name="uploaded_file" type="file"/>
    <input type="submit" value="Upload It"/>
    </form>
<!-- when the form is submitted, the server response will appear in this iframe -->
<script language="JavaScript">
<!--
function autoResize(id){
    var newheight;
    var newwidth;

    if(document.getElementById){
        newheight=document.getElementById(id).contentWindow.document .body.scrollHeight;
        newwidth=document.getElementById(id).contentWindow.document .body.scrollWidth;
    }

    document.getElementById(id).height= (newheight) + "px";
    document.getElementById(id).width= (newwidth) + "px";
}
//-->
</script>

<IFRAME name="my_iframe" width="100%" height="200px" id="iframe1" marginheight="0" frameborder="0" onLoad="autoResize('iframe1');"></iframe>

If you put all your php into upload.php and then have that form on a page in the same directory, it's pretty close to being functional... Except you don't yet have an API_KEY in your source. You can get an API KEY here: https://imgur.com/register/api_anon

In the end your php should look like this:

    <?
    if( isset($_FILES['uploaded_file']) )
{
    $IMGUR_API_KEY = 'u432ewriuq3oirefuie'; //put your api key here
    $filename = $_FILES['uploaded_file']['tmp_name'];
    $handle = fopen($filename, "r");
    $data = fread($handle, filesize($filename));

    //$data is file data
    $pvars   = array('image' => base64_encode($data), 'key' => $IMGUR_API_KEY);
    #$pvars   = array('key' => $IMGUR_API_KEY);
    $timeout = 30;
    $curl    = curl_init();

    curl_setopt($curl, CURLOPT_URL, 'http://api.imgur.com/2/upload.xml');
    #curl_setopt($curl, CURLOPT_URL, 'http://api.imgur.com/2/gallery.xml');
    curl_setopt($curl, CURLOPT_TIMEOUT, $timeout);
    curl_setopt($curl, CURLOPT_POST, 1);
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($curl, CURLOPT_POSTFIELDS, $pvars);
    $xml = curl_exec($curl);
    $xmlsimple = new SimpleXMLElement($xml);
    echo '<img height="180" src="';
    echo $xmlsimple->links->original;
    echo '">';

    curl_close ($curl);
    }
?>