Add files via upload

Fixed php8 warnings

Author: Jobians

core/Request.php

@@ -91,14 +91,19 @@ public function __get($name)
                 return $_GET;
             case 'post':
                 return $_POST;
-            case 'header':
+            case 'body':
+                $requestBody = file_get_contents('php://input');
+                return json_decode($requestBody, true, 512, JSON_PARTIAL_OUTPUT_ON_ERROR);
+            case 'headers':
                 return $this->getHeaders();
             case 'cookies':
                 return $_COOKIE;
             case 'route':
                 return $_SERVER['REQUEST_URI'];
             case 'session':
-                session_start();
+                if (session_status() === PHP_SESSION_NONE) {
+                  session_start();
+                }
                 return $_SESSION;
             case 'method':
                 return $_SERVER['REQUEST_METHOD'];

core/Response.php

@@ -16,21 +16,29 @@ class Response
     public function send($content, $http_headers = []) {
         if (is_array($http_headers) && !empty($http_headers)) {
           foreach ($http_headers as $key => $value) {
-              header($key . ': ' . $value);
+              if (!headers_sent()) {
+                header($key . ': ' . $value);
+              }
           }
       }
       echo $content;
     }
 
     public function json($data)
     {
-        header('Content-Type: application/json');
+        if (!headers_sent()) {
+          header('Content-Type: application/json');
+        }
         echo json_encode($data);
     }
 
     public function redirect($url)
     {
-        header("Location: $url");
+        ob_start();
+        if (!headers_sent()) {
+          header("Location: $url");
+        }
+        ob_end_flush();
         exit();
     }
 
@@ -112,18 +120,24 @@ public function render($template, $data=[])
     }
 
     public function setHeader($name, $value) {
-    	header($name.':'.$value);
+      if (!headers_sent()) {
+        header($name.':'.$value);
+      }
     }
 
     public function setSession($name, $value)
     {
-        session_start();
+        if (session_status() === PHP_SESSION_NONE) {
+            session_start();
+        }
         $_SESSION[$name] = $value;
     }
 
     public function setCookie($name, $value, $expires = 0, $path = '', $domain = '', $secure = false, $httponly = false)
     {
+        ob_start();
         setcookie($name, $value, $expires, $path, $domain, $secure, $httponly);
+        ob_end_flush();
     }
 
     public function status($statusCode)

core/Router.php

@@ -146,6 +146,8 @@ private function processHandlers($req, $res, $handlers)
     }
 
     protected function matchRoute($route, $path, $req) {
+        $path = $path ?? "";
+        $route = $route ?? "";
         $routeParts = explode('/', trim($route, '/'));
         $pathParts = explode('/', trim($path, '/'));