first commit

app/Database/database.php

@@ -0,0 +1,29 @@
+<?php
+namespace Blog\Database;
+
+use PDO;
+use PDOException;
+
+class Database {
+  private static ?PDO $pdo = null;
+
+  public static function getConnection(): PDO {
+    if(self::$pdo === null) {
+      $config = parse_ini_file(__DIR__ . "/../../.env");
+      try {
+        self::$pdo = new PDO(
+          "mysql:host={$config['DB_HOST']};dbname={$config['DB_NAME']};charset=utf8mb4",
+          $config['DB_USER'],
+          $config['DB_PASS'], [
+            PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
+            PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_OBJ,
+            PDO::ATTR_PERSISTENT => true
+          ]
+        );
+      } catch(PDOException $e) {
+        die("Datenbankverbindung fehlgeschlagen: " . $e->getMessage());
+      }
+    }
+    return self::$pdo;
+  }
+}