Initial commit - Last War messaging system

includes/activity_logger.php

@@ -0,0 +1,31 @@
+<?php
+
+function logActivity(int $userId, string $action, string $details): void
+{
+    $pdo = getDbConnection();
+    
+    $username = $_SESSION['username'] ?? 'system';
+    
+    $stmt = $pdo->prepare("INSERT INTO activity_log (user_id, username, action, details, timestamp) VALUES (?, ?, ?, ?, NOW())");
+    $stmt->execute([$userId, $username, $action, $details]);
+}
+
+function getActivityLog(?int $limit = 100): array
+{
+    $pdo = getDbConnection();
+    
+    $stmt = $pdo->prepare("SELECT * FROM activity_log ORDER BY timestamp DESC LIMIT ?");
+    $stmt->execute([$limit]);
+    
+    return $stmt->fetchAll();
+}
+
+function getUserActivity(int $userId, ?int $limit = 50): array
+{
+    $pdo = getDbConnection();
+    
+    $stmt = $pdo->prepare("SELECT * FROM activity_log WHERE user_id = ? ORDER BY timestamp DESC LIMIT ?");
+    $stmt->execute([$userId, $limit]);
+    
+    return $stmt->fetchAll();
+}