fixing errors

db/config.php

@@ -18,7 +18,15 @@ function db() {
 }
 
 function check_permission($page = null, $user_id = null) {
-    if (!$user_id) $user_id = $_SESSION['user_id'] ?? null;
+    // Safely access session
+    if (!$user_id) {
+        if (isset($_SESSION) && isset($_SESSION['user_id'])) {
+            $user_id = $_SESSION['user_id'];
+        } else {
+            $user_id = null;
+        }
+    }
+    
     if (!$page) $page = basename($_SERVER['PHP_SELF']);
     if (!$user_id) return ['view' => 0, 'add' => 0, 'edit' => 0, 'delete' => 0];
 
@@ -67,4 +75,4 @@ function set_setting($key, $value) {
 function has_permission($action, $page = null, $user_id = null) {
     $perms = check_permission($page, $user_id);
     return !empty($perms[$action]);
-}
+}

includes/lang.php

@@ -3,19 +3,28 @@ if (session_status() === PHP_SESSION_NONE) {
     session_start();
 }
 
+/**
+ * Load environment variables from the root .env file (if present)
+ */
 function load_dotenv_lang(): void {
     static $loaded = false;
     if ($loaded) return;
     $envPath = realpath(__DIR__ . '/../../.env'); // executor/.env
     if ($envPath && is_readable($envPath)) {
-        $lines = @file($envPath, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES) ?: [];
-        foreach ($lines as $line) {
-            if ($line[0] === '#' || trim($line) === '') continue;
-            if (!str_contains($line, '=')) continue;
-            [$k, $v] = array_map('trim', explode('=', $line, 2));
-            $v = trim($v, "' ");
-            if ($k !== '' && (getenv($k) === false || getenv($k) === '')) {
-                putenv("{$k}={$v}");
+        $lines = @file($envPath, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
+        if ($lines !== false) {
+            foreach ($lines as $line) {
+                $line = trim($line);
+                if ($line === '' || $line[0] === '#') continue;
+                if (!str_contains($line, '=')) continue;
+                [$k, $v] = array_map('trim', explode('=', $line, 2));
+                if ($k === '') continue;
+                $v = trim($v, "' ");
+                if (getenv($k) === false || getenv($k) === '') {
+                    putenv("{$k}={$v}");
+                    $_ENV[$k] = $v;
+                    $_SERVER[$k] = $v;
+                }
             }
         }
         $loaded = true;
@@ -132,7 +141,7 @@ $translations = [
         'company_profile' => 'Settings',
         'user_profile' => 'User Profile',
         'logo' => 'Logo',
-        'favicon' => 'Aيقونة الموقع',
+        'favicon' => 'أيقونة الموقع',
         'email' => 'Email',
         'address_en' => 'Address (EN)',
         'address_ar' => 'Address (AR)',
@@ -377,7 +386,7 @@ $translations = [
         'update_status' => 'تحديث الحالة',
         'update' => 'تحديث',
         'remaining_amount' => 'المبلغ المتبقي',
-        'add_payment' => 'إضافة دفعة',
+        'add_payment' => 'إإضافة دفعة',
         'payment_method' => 'طريقة الدفع',
         'customer_details' => 'تفاصيل العميل',
         'order_date' => 'تاريخ الطلب',
@@ -514,4 +523,4 @@ function branch_url($new_branch_id) {
     $params = $_GET;
     $params['switch_branch'] = $new_branch_id;
     return '?' . http_build_query($params);
-}
+}

receipt.php

@@ -1,8 +1,9 @@
 <?php
 require_once __DIR__ . '/db/config.php';
-if ($_SESSION['role'] === 'limited_viewer') { die('Access Denied'); }
 require_once __DIR__ . '/includes/lang.php';
 
+if (($_SESSION['role'] ?? 'cashier') === 'limited_viewer') { die('Access Denied'); }
+
 $order_id = $_GET['id'] ?? null;
 if (!$order_id) {
     die("Order ID is required");
@@ -342,4 +343,4 @@ $display_ctr = $company['ctr_no'];
         }
     </script>
 </body>
-</html>
+</html>