Initial dev export (exclude uploads/runtime)

core/services/Database.php

@@ -0,0 +1,50 @@
+<?php
+declare(strict_types=1);
+
+namespace Core\Services;
+
+use PDO;
+use PDOException;
+
+class Database
+{
+    private static ?PDO $pdo = null;
+
+    public static function get(): ?PDO
+    {
+        if (self::$pdo instanceof PDO) {
+            return self::$pdo;
+        }
+
+        $configPath = __DIR__ . '/../../storage/db.php';
+        if (!is_file($configPath)) {
+            return null;
+        }
+
+        $config = require $configPath;
+        if (!is_array($config)) {
+            return null;
+        }
+
+        $host = (string)($config['host'] ?? 'localhost');
+        $db = (string)($config['database'] ?? '');
+        $user = (string)($config['user'] ?? '');
+        $pass = (string)($config['pass'] ?? '');
+        $port = (int)($config['port'] ?? 3306);
+        if ($db == '' || $user == '') {
+            return null;
+        }
+
+        $dsn = "mysql:host={$host};dbname={$db};port={$port};charset=utf8mb4";
+        try {
+            self::$pdo = new PDO($dsn, $user, $pass, [
+                PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
+                PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
+            ]);
+        } catch (PDOException $e) {
+            return null;
+        }
+
+        return self::$pdo;
+    }
+}