Добавлен класс DatabaseConfig

app/library/Database.php

@@ -1,15 +1,19 @@
 <?php
 namespace App\Library;
 
+use App\Library\DatabaseConfig;
 use PDOException;
 use PDO;
-class Database extends PDO
+class Database
 {
-    public function __construct(string $dsn, string $username, string $password)
+    private PDO $pdo;
+    public function __construct(DatabaseConfig $config)
     {
         try {
-            $dsn .= ";charset=utf8";
-            parent::__construct(
+            $dsn = $config->getDsn();
+            $username = $config->getUsername();
+            $password = $config->getPassword();
+            $this->pdo = new PDO(
                 $dsn, 
                 $username, 
                 $password, 
@@ -26,12 +30,13 @@ class Database extends PDO
         echo "Подключение прервано!\n";
     }
     
-    public function executeQuery(string $sql, array $params) : array|bool
+    public function executeQuery(string $sql, array $params) : array|null
     {
         try {
-            $stmt = $this->prepare($sql);
+            $stmt = $this->pdo->prepare($sql);
+            $params = array_values($params);
             for ($i = 0; $i < count($params); $i++) { 
-                $stmt->bindParam(":v".$i+1, $params[$i]);
+                $stmt->bindParam(":v".$i++, $params[$i]);
             }
             $stmt->execute();
             $array = $stmt->fetchAll(PDO::FETCH_ASSOC);

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;
+    } 
+}