如何使用PHP将图像发送到deviantsart rest API

Question

Here, one of the responses (#3) tells:

http://deviantsart.com has a public and easy to use API just HTTP POST the image to their domain and you will get a JSON with the URL

Here is the URL:

Are there any image hosting services with a public API?

The only instructions are basically

"Upload using our public REST API: POST http://deviantsart.com yourimage.jpg

JSON-Result:

{ "url" : "urltoimage" }"

Nice, but, how can I make it programmable?

Here is my code:

//the file was uploaded by a simple html form

if ($_POST) { //submit
    $tmp = array_merge($_POST);

    $r = new HttpRequest('http://deviantsart.com', HttpRequest::METH_POST);
    $r->addPostFile($tmp['img']); //tmp has post vars
    echo $r->getUrl();

    try {
        echo $r->send()->getBody();
        exit();
    } catch (HttpException $ex) {
        echo $ex;
        exit();
    }
}

LAST EDIT: please, dont care about my code, try to solve with your own. I just want see how it works. Many thanks!

Answer 1

Yes it should be simple but... it's the implementation of simple that's hard ;p

Here is an example. I don't use or have PECL HttpRequest class, so I've added cURL just in case, if you're getting nothing. You should check your error logs and enable error reporting.

<?php
//check is POST
if ($_SERVER['REQUEST_METHOD'] == 'POST') {

    //check image upload, your want to check for other things too like: is it an image?
    if(isset($_FILES['img']['name'])){

        //make filename for new file
        $uploadfile = basename($_FILES['img']['name']);

        //move the upload
        if (move_uploaded_file($_FILES['img']['tmp_name'], $uploadfile)) {

            /* HttpRequest - I dont use it, it should work but if like me, 
              its class not found, then this condition will revert to curl */
            if(class_exists('HttpRequest')){
                try {
                    $r = new HttpRequest('http://deviantsart.com', HttpRequest::METH_POST);
                    $r->addPostFile('file', $_SERVER['DOCUMENT_ROOT'].'/'.$uploadfile);

                    $resp = $r->send()->getBody();
                } catch (HttpException $ex) {
                    $resp = $ex;
                }
            }
            //simplez curl POST file
            else{
                $ch = curl_init('http://deviantsart.com');
                curl_setopt($ch, CURLOPT_HEADER, 0);
                curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
                curl_setopt($ch, CURLOPT_POST, true);
                curl_setopt($ch, CURLOPT_TIMEOUT, 30);
                curl_setopt($ch, CURLOPT_POSTFIELDS, array(
                    'file'=>'@'.$_SERVER['DOCUMENT_ROOT'].'/'.$uploadfile,
                ));

                $resp = curl_exec($ch);
            }

            //decode the json response
            $resp = json_decode($resp, true);
        }
    }

}

//output the image from deviantsart
if(isset($resp['url'])){
    echo '<img src="'.$resp['url'].'"/>';
}
?>
<form enctype="multipart/form-data" action="" method="POST">
    <!-- Name of input element determines name in $_FILES array -->
    Send this file: <input name="img" type="file" />
    <input type="submit" value="Send File" />
</form>