Symfony Request Extension

Request.php

<?php

namespace Core\Http;

use Symfony\Component\HttpFoundation\Request as SymfonyRequest;
use Symfony\Component\HttpFoundation\ParameterBag;

class Request extends SymfonyRequest
{
    /**
     * @var ParameterBag
     */
    public $json;

    /**
     * Sets the parameters for this request.
     *
     * This method also re-initializes all properties.
     *
     * @param array  $query      The GET parameters
     * @param array  $request    The POST parameters
     * @param array  $attributes The request attributes (parameters parsed from the PATH_INFO, ...)
     * @param array  $cookies    The COOKIE parameters
     * @param array  $files      The FILES parameters
     * @param array  $server     The SERVER parameters
     * @param string $content    The raw body data
     * @api
     */
    public function initialize(array $query = array(), array $request = array(), array $attributes = array(), array $cookies = array(), array $files = array(), array $server = array(), $content = null)
    {
        parent::initialize($query, $request, $attributes, $cookies, $files, $server, $content);

        $this->json = new ParameterBag($this->isJson() ? (array) json_decode($this->getContent(), true) : []);
    }

    /**
     * Return array or single key from $_GET
     * @param  string $key
     * @param  null   $default
     * @return mixed
     */
    public function query($key, $default = null)
    {
        return $this->query->get($key, $default);
    }

    /**
     * Return array or single key from $_POST
     * @param  string $key
     * @param  null   $default
     * @return mixed
     */
    public function post($key, $default = null)
    {
        return $this->request->get($key, $default);
    }

    /**
     * Return array or single key from $_SERVER
     * @param  string $key
     * @param  null   $default
     * @return mixed
     */
    public function server($key, $default = null)
    {
        return $this->server->get($key, $default);
    }

    /**
     * Return array or single key from $_FILES
     * @param  string $key
     * @param  null   $default
     * @return mixed
     */
    public function file($key, $default = null)
    {
        return $this->files->get($key, $default);
    }

    /**
     * Return array or single key from $_COOKIE
     * @param  string $key
     * @param  null   $default
     * @return mixed
     */
    public function cookie($key, $default = null)
    {
        return $this->cookies->get($key, $default);
    }

    /**
     * Return array or single key from headers taken from $_SERVER
     * @param  string $key
     * @param  null   $default
     * @return mixed
     */
    public function header($key, $default = null)
    {
        return $this->headers->get($key, $default);
    }

    /**
     * Parse the JSON body and get a value from it.
     * @param  string $key
     * @param  mixed  $default
     * @return mixed
     */
    public function json($key, $default = null)
    {
        return $this->json->get($key, $default);
    }

    /**
     * Determine if the request is a JSON request.
     * @return bool
     */
    public function isJson()
    {
        return $this->getContentType() === 'json';
    }
}