Добавлен класс DatabaseConfig

app/library/DatabaseConfig.php

@@ -0,0 +1,49 @@
+<?php
+namespace App\Library;
+
+class DatabaseConfig
+{
+    private string $driver;
+    private string $host;
+    private string $dbname;
+    private string $port;
+    private string $charset;
+    private string $username;
+    private string $password;
+
+    public function __construct(string $db)
+    {
+        $envVars = parse_ini_file('.env', true);
+        $db = strtoupper($db);
+        foreach ($envVars as $dbname => $dbconfig) {
+            if ($dbname == $db) {
+                $config = $dbconfig;
+            }
+        }
+        $this->driver = $config['DB_DRIVER'];
+        $this->host = $config['DB_HOST'];
+        $this->dbname = $config['DB_NAME'];
+        $this->port = $config['DB_PORT'];
+        $this->charset = $config["DB_CHARSET"];
+        $this->username = $config['DB_USERNAME'];
+        $this->password = $config['DB_PASSWORD'];
+    }
+
+    public function getDsn() : string
+    {
+        return $this->driver.":host=".$this->host
+            .";dbname=".$this->dbname
+            .";charset=".$this->charset
+            .";port=".$this->port;
+    }
+
+    public function getUsername() : string
+    {
+        return $this->username;
+    }
+
+    public function getPassword() : string
+    {
+        return $this->password;
+    } 
+}