Working PHP example of uploading a photo with V2 api

upload.php

<?php

#Requires PHP 5.3.0

define("CONSUMER_KEY", "consumer_key");
define("CONSUMER_SECRET", "consumer_secret");
define("OAUTH_TOKEN", "access_token");
define("OAUTH_SECRET", "access_secret");

function oauth_gen($method, $url, $iparams, &$headers) {
    
    $iparams['oauth_consumer_key'] = CONSUMER_KEY;
    $iparams['oauth_nonce'] = strval(time());
    $iparams['oauth_signature_method'] = 'HMAC-SHA1';
    $iparams['oauth_timestamp'] = strval(time());
    $iparams['oauth_token'] = OAUTH_TOKEN;
    $iparams['oauth_version'] = '1.0';
    $iparams['oauth_signature'] = oauth_sig($method, $url, $iparams);
    print $iparams['oauth_signature'];  
    $oauth_header = array();
    foreach($iparams as $key => $value) {
        if (strpos($key, "oauth") !== false) { 
           $oauth_header []= $key ."=".$value;
        }
    }
    $oauth_header = "OAuth ". implode(",", $oauth_header);
    $headers["Authorization"] = $oauth_header;
}

function oauth_sig($method, $uri, $params) {
    
    $parts []= $method;
    $parts []= rawurlencode($uri);
   
    $iparams = array();
    ksort($params);
    foreach($params as $key => $data) {
            if(is_array($data)) {
                $count = 0;
                foreach($data as $val) {
                    $n = $key . "[". $count . "]";
                    $iparams []= $n . "=" . rawurlencode($val);
                    $count++;
                }
            } else {
                $iparams[]= rawurlencode($key) . "=" .rawurlencode($data);
            }
    }
    $parts []= rawurlencode(implode("&", $iparams));
    $sig = implode("&", $parts);
    return base64_encode(hash_hmac('sha1', $sig, CONSUMER_SECRET."&". OAUTH_SECRET, true));
}


$headers = array("Host" => "http://api.tumblr.com/", "Content-type" => "application/x-www-form-urlencoded", "Expect" => "");
$params = array("data" => array(file_get_contents("/path/to/file"), file_get_contents("/path/to/file")),
"type" => "photo");

$blogname = "testing.tumblr.com";
oauth_gen("POST", "http://api.tumblr.com/v2/blog/$blogname/post", $params, $headers);

$ch = curl_init();
curl_setopt($ch, CURLOPT_USERAGENT, "PHP Uploader Tumblr v1.0");
curl_setopt($ch, CURLOPT_URL, "http://api.tumblr.com/v2/blog/$blogname/post");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1 );

curl_setopt($ch, CURLOPT_HTTPHEADER, array(
    "Authorization: " . $headers['Authorization'],
    "Content-type: " . $headers["Content-type"],
    "Expect: ")
);

$params = http_build_query($params);

curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $params);

$response = curl_exec($ch);
print $response;
?>

Hi all, I've used this script for a while and everything runs smooth, but then I've changed hosting (a more limited one), and I started to notice some issues:
when adding more than 4Mb of images (photoset), I runs often out of memory, after debugging a little, I've noticed that every element of the $params array is rawurlencoded, that's nice, but urlencoding a 1Mb image results in a string of at least 3Mb, this is leading to out of memory errors. I've contacted the [email protected] and this is what they answer:

You shouldn't need to include the files in the parameters used for generating the oauth signature. For an example of how this is done, checkout one of our official API clients.

but, calling the oauth_gen() using a empty array, leads to 401 not authorized error...

do someone know something?

Hi!
This code is quite handy and worked for me.
But, can you tell me that how add caption(text) to images posting to tumblr.
I have tried this below

$params = array(
                    "data" => array(file_get_contents("path/to/image")),
                    "type" => "photo",
                    "generator" => "Testing tumblr API example"
                );

But this wasn't working.

Secondly, can we add a link on the image while uploading it.

Waiting for the reply.
Thanks

Thanks for sharing that code, comment on the code will have been nice for beginners.

thanks

Dude, if 1 thumb-up means that I have to cut one bloody finger for you, I'm willing to cut all my fingers to represent my appreciation.