Initial Commit

core/Database.php

@@ -0,0 +1,54 @@
+<?php
+
+namespace Core;
+
+use PDO;
+use PDOException;
+
+class Database
+{
+    private static ?PDO $pdo = null;
+
+    public function __construct()
+    {
+        if (self::$pdo === null) {
+            $this->connect();
+        }
+    }
+
+    private function connect()
+    {
+        $host = $_ENV['DB_HOST'];
+        $port = $_ENV['DB_PORT'];
+        $database = $_ENV['DB_DATABASE'];
+        $username = $_ENV['DB_USERNAME'];
+        $password = $_ENV['DB_PASSWORD'];
+
+        try {
+            $dsn = "mysql:host=$host;port=$port;dbname=$database;charset=utf8mb4";
+            self::$pdo = new PDO($dsn, $username, $password, [
+                PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
+                PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
+                PDO::ATTR_EMULATE_PREPARES => false,
+            ]);
+        } catch (PDOException $e) {
+            die("Database connection failed: " . $e->getMessage());
+        }
+    }
+
+    public static function getConnection(): PDO
+    {
+        if (self::$pdo === null) {
+            new self();
+        }
+        return self::$pdo;
+    }
+
+    public function query(string $sql, array $params = []): \PDOStatement
+    {
+        $stmt = self::$pdo->prepare($sql);
+        $stmt->execute($params);
+        return $stmt;
+    }
+}
+