CODEWITHSUNDEEP
phpcurlimage-uploadingimgur
Timmy
Timmy

Reputation: 745

Cannot upload an image on imgur [API 3]

I'm trying to upload images on imgur but I often have problem and I am not able to upload the image.

In the code I'll publish I don't understand why I keep getting the boolean value: false as result of curl_exec($ch); and not a json string. From the PHP Manual it means that the post failed but I don't understand why.

Here I successfully read the image from a post request

$imageContent = file_get_contents($myFile["tmp_name"][$i]);
if ($imageContent === false) {
    // Empty image - I never get this error
} else {
    //Image correctly read
    $url = $this->uploadLogged($imageContent);
}

While here is my attempt to upload it

public function uploadLogged($image){
    $upload_route = "https://api.imgur.com/3/image";

    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $upload_route);
    curl_setopt($ch, CURLOPT_POST, TRUE);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
    curl_setopt($ch, CURLOPT_HTTPHEADER, array( 'Authorization: Bearer '.$this->access_token));
    curl_setopt($ch, CURLOPT_POSTFIELDS, array('image' => base64_encode($image)));
    $response = curl_exec($ch);
    $responseDecoded = json_decode($response);
    curl_close ($ch);
    $link = $responseDecoded->data->link;
    if( empty($link) ){
        throw new Exception("Cannot upload the image.<br>Response: ".json_encode($response));
    }
    return $link;
}

Moreover $this->access_token correspond to a valid access token

Upvotes: 0

Views: 1142

Answers (1)

hanshenrik
hanshenrik

Reputation: 21463

when curl_exec returns bool(false), there was an error during the transfer. to get an extended error description, use the curl_errno() and curl_error() functions. to get even more detailed info of the transfer, use the CURLOPT_VERBOSE and CURLOPT_STDERR options of curl_setopt. eg

$curlstderrh=tmpfile();
curl_setopt_array($ch,array(CURLOPT_VERBOSE=>1,CURLOPT_STDERR=>$curlstderrh));
$response = curl_exec($ch);
$curlstderr=file_get_contents(stream_get_meta_data($curlstderrh)['uri']);
fclose($curlstderrh);
if(false===$response){
   throw new \RuntimeException("curl_exec failed: ".curl_errno($ch).": ".curl_error($ch).". verbose log: $curlstderr");
}
unset($curlstderrh,$curlstderr);

should get you both the libcurl error code, an error description, and a detailed log of what happened up until the error, in the exception message.

common issues include an SSL/TLS encryption/decryption error, timeout errors, and an unstable connection.

Upvotes: 1

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