PHP multipart form data PUT request?

Question

I\'m writing a RESTful API. I\'m having trouble with uploading images using the different verbs.

Consider:

I have an object which can be created/modified/del

Answer 1

For whom using Apiato (Laravel) framework: create new Middleware like file below, then declair this file in your laravel kernel file within the protected $middlewareGroups variable (inside web or api, whatever you want) like this:

protected $middlewareGroups = [
    'web' => [],
    'api' => [HandlePutFormData::class],
];

---

method() == 'POST' or $request->method() == 'GET') {
            return $next($request);
        }
        if (preg_match('/multipart\/form-data/', $request->headers->get('Content-Type')) or
            preg_match('/multipart\/form-data/', $request->headers->get('content-type'))) {
            $parameters = $this->decode();

            $request->merge($parameters['inputs']);
            $request->files->add($parameters['files']);
        }

        return $next($request);
    }

    public function decode()
    {
        $files = [];
        $data  = [];
        // Fetch content and determine boundary
        $rawData  = file_get_contents('php://input');
        $boundary = substr($rawData, 0, strpos($rawData, "\r\n"));
        // Fetch and process each part
        $parts = $rawData ? array_slice(explode($boundary, $rawData), 1) : [];
        foreach ($parts as $part) {
            // If this is the last part, break
            if ($part == "--\r\n") {
                break;
            }
            // Separate content from headers
            $part = ltrim($part, "\r\n");
            list($rawHeaders, $content) = explode("\r\n\r\n", $part, 2);
            $content = substr($content, 0, strlen($content) - 2);
            // Parse the headers list
            $rawHeaders = explode("\r\n", $rawHeaders);
            $headers    = array();
            foreach ($rawHeaders as $header) {
                list($name, $value) = explode(':', $header);
                $headers[strtolower($name)] = ltrim($value, ' ');
            }
            // Parse the Content-Disposition to get the field name, etc.
            if (isset($headers['content-disposition'])) {
                $filename = null;
                preg_match(
                    '/^form-data; *name="([^"]+)"(; *filename="([^"]+)")?/',
                    $headers['content-disposition'],
                    $matches
                );
                $fieldName = $matches[1];
                $fileName  = (isset($matches[3]) ? $matches[3] : null);
                // If we have a file, save it. Otherwise, save the data.
                if ($fileName !== null) {
                    $localFileName = tempnam(sys_get_temp_dir(), 'sfy');
                    file_put_contents($localFileName, $content);
                    $files = $this->transformData($files, $fieldName, [
                        'name'     => $fileName,
                        'type'     => $headers['content-type'],
                        'tmp_name' => $localFileName,
                        'error'    => 0,
                        'size'     => filesize($localFileName)
                    ]);
                    // register a shutdown function to cleanup the temporary file
                    register_shutdown_function(function () use ($localFileName) {
                        unlink($localFileName);
                    });
                } else {
                    $data = $this->transformData($data, $fieldName, $content);
                }
            }
        }
        $fields = new ParameterBag($data);

        return ["inputs" => $fields->all(), "files" => $files];
    }

    private function transformData($data, $name, $value)
    {
        $isArray = strpos($name, '[]');
        if ($isArray && (($isArray + 2) == strlen($name))) {
            $name = str_replace('[]', '', $name);
            $data[$name][]= $value;
        } else {
            $data[$name] = $value;
        }
        return $data;
    }
}

Pls note: Those codes above not all mine, some from above comment, some modified by me.