Merge pull request #60 from webrium:Add-Header-Class

feat: add header class

src/Header.php

@@ -0,0 +1,49 @@
+<?php
+namespace webrium;
+
+class Header
+{
+
+    public static function all(){
+        return getallheaders();
+    }
+
+
+
+    /** 
+    * Get header Authorization
+    */
+    public static function getAuthorizationHeader()
+    {
+        $headers = null;
+        if (isset($_SERVER['Authorization'])) {
+        $headers = trim($_SERVER["Authorization"]);
+        } else if (isset($_SERVER['HTTP_AUTHORIZATION'])) { //Nginx or fast CGI
+        $headers = trim($_SERVER["HTTP_AUTHORIZATION"]);
+        } elseif (function_exists('apache_request_headers')) {
+            $requestHeaders = apache_request_headers();
+            // Server-side fix for bug in old Android versions (a nice side-effect of this fix means we don't care about capitalization for Authorization)
+            $requestHeaders = array_combine(array_map('ucwords', array_keys($requestHeaders)), array_values($requestHeaders));
+
+            if (isset($requestHeaders['Authorization'])) {
+                $headers = trim($requestHeaders['Authorization']);
+            }
+        }
+        return $headers;
+    }
+
+    /**
+     * get access token from header
+     */
+    public static function getBearerToken()
+    {
+        $headers = self::getAuthorizationHeader();
+
+        if (!empty($headers)) {
+            return substr($headers, 7);
+        }
+
+        return false;
+    }
+
+}