fix: http.core.HttpRequest (now manages both Apache/nginx, especially php-fpm because the function 'getallheaders()' is not available, so gess it from (solution from http://php.net/manual/en/function.getallheaders.php\#84262))

build/http/core/HttpRequest.php

@@ -42,7 +42,7 @@
 
 			/* [2] Define headers
 			=========================================================*/
-			$this->headers = \getallheaders();
+			$this->headers = self::getallheaders_adapter();
 
 
 			/* [3] Define default datasets (GET, POST)
@@ -201,4 +201,30 @@
 		public function HEADERS(){ return $this->headers;  }
 		public function METHOD(){  return $this->method;   }
 		public function URI(){     return $this->uri;      }
+
+
+		private static function getallheaders_adapter(){
+			/* (1) If exists -> use it
+			---------------------------------------------------------*/
+			if( function_exists('getallheaders') )
+				return getallheaders();
+
+			/* (2) If does not (php-fpm)
+			---------------------------------------------------------*/
+			/* (1) init. variables */
+			$fetched_headers = [];
+
+			/* (2) Get all headers from $_SERVER */
+			foreach($_SERVER as $hname=>$hvalue ){
+
+				// {1} Store only if begins with 'HTTP_' //
+				if( substr($hname,0,5) == 'HTTP_' )
+					$fetched_headers[ str_replace(' ', '-', ucwords(strtolower(str_replace('_', ' ', substr($hname,5)))))] = $hvalue;
+
+			}
+
+			/* (3) Return created headers */
+			return $fetched_headers;
+
+		}
 	}