Initial commit

db.php

@@ -0,0 +1,34 @@
+<?php
+
+require "config.php";
+
+function db_connect(): PDO
+{
+    static $pdo = null;
+    if ($pdo !== null) {
+        return $pdo;
+    }
+
+    try {
+        $pdo = new PDO(CONFIG_DB_DSN, CONFIG_DB_USER, CONFIG_DB_PASSWORD);
+    } catch (PDOException $e) {
+        exit("Errore connessione database: " . $e->getMessage());
+    }
+
+    return $pdo;
+}
+
+function db_query(string $query, array $params = []): array
+{
+    $pdo = db_connect();
+
+    try {
+        $stmt = $pdo->prepare($query);
+        $stmt->execute($params);
+        return $stmt->fetchAll();
+    } catch (PDOException $e) {
+        exit("Errore connessione database: " . $e->getMessage());
+    }
+}
+
+?>