lib/Dropbox/Client.php
function uploadFileFromString($path, $writeMode, $data)
    {
        Path::checkArgNonRoot("path", $path);
        WriteMode::checkArg("writeMode", $writeMode);
        Checker::argString("data", $data);

        return $this->_uploadFile($path, $writeMode, function(Curl $curl) use ($data) {
            $curl->set(CURLOPT_CUSTOMREQUEST, "PUT");
            $curl->set(CURLOPT_POSTFIELDS, $data);
            $curl->addHeader("Content-Type: application/octet-stream");
        });
    }
function uploadFileFromString($path, $writeMode, $data)
    {
        Path::checkArgNonRoot("path", $path);
        WriteMode::checkArg("writeMode", $writeMode);
        Checker::argString("data", $data);

        return $this->_uploadFile($path, $writeMode, function(Curl $curl) use ($data) {
            $curl->set(CURLOPT_CUSTOMREQUEST, "PUT");
            $curl->set(CURLOPT_POSTFIELDS, $data);
            $curl->addHeader("Content-Type: application/octet-stream");
        });
    }
Creates a file on Dropbox, using the given $data string as the file contents.

<code>
use \Dropbox as dbx;
$client = ...;
$md = $client->uploadFileFromString("/Grocery List.txt",
dbx\WriteMode::add(),
"1. Coke\n2. Popcorn\n3. Toothpaste\n");
print_r($md);
</code>

@param string $path
The Dropbox path to save the file to (UTF-8).

@param WriteMode $writeMode
What to do if there's already a file at the given path.

@param string $data
The data to use for the contents of the file.

@return mixed
The <a href="https://www.dropbox.com/developers/core/docs#metadata-details>metadata
object</a> for the newly-added file.

@throws Exception