A middleware for checking and validating the headers of incoming requests.

RequestMiddleware.php

<?php
    namespace App;

    /**
     * RequestMiddleware - The RequestMiddleware. This Controller makes use of a few Models, Classes and packages for authenticating requests....
     *
     * @author      Ilori Stephen A <stephenilori458@gmail.com>
     * @link        https://github.com/learningdollars/php-rest-api/App/Middleware/RequestMiddleware.php
     * @license     MIT
     */
    class RequestMiddleware {
        protected static $Request;

         /**
         * __construct
         *
         * Initializes the middleware
         *
         * @param void
         * @return void
         */
        public function __construct()
        {
          Self::$Request = isset($_SERVER['CONTENT_TYPE']) ? $_SERVER['CONTENT_TYPE'] : '';
          return;
        }

         /**
         * acceptsJson
         *
         * Determines if the request is of a JSON Content type
         *
         * @param void
         * @return boolean
         */
        public static function acceptsJson()
        {
          if (strtolower(Self::$Request) == 'application/json') {
            return true;
          }

          return false;
        }

         /**
         * acceptsFormData
         *
         * Determines if the request is of a Form Data Content type
         *
         * @param void
         * @return boolean
         */
        public static function acceptsFormData()
        {
          Self::$Request = explode(';', Self::$Request)[0];
          if (strtolower(Self::$Request) == 'multipart/form-data') {
            return true;
          }

          return false;
        }
    }
?>