diff --git a/design_patterns/abstract_factory/.env b/design_patterns/abstract_factory/.env
new file mode 100644
index 0000000..5d735a7
--- /dev/null
+++ b/design_patterns/abstract_factory/.env
@@ -0,0 +1,6 @@
+DB_DRIVER=pgsql
+DB_HOST=db
+DB_PORT=5432
+DB_DATABASE=movie
+DB_USERNAME=root
+DB_PASSWORD=password
\ No newline at end of file
diff --git a/design_patterns/abstract_factory/Container.php b/design_patterns/abstract_factory/Container.php
new file mode 100644
index 0000000..dd1f99f
--- /dev/null
+++ b/design_patterns/abstract_factory/Container.php
@@ -0,0 +1,15 @@
+<?php
+
+declare(strict_types=1);
+
+class Container
+{
+    public static function make(string $driver): DbFactoryInterface
+    {
+        return match ($driver) {
+            'mysql' => new MySqlFactory(),
+            'pgsql' => new PgSqlFactory(),
+            default => throw new RuntimeException('Неизвестный драйвер базы данных'),
+        };
+    }
+}
\ No newline at end of file
diff --git a/design_patterns/abstract_factory/Interfaces/DbConnectionInterface.php b/design_patterns/abstract_factory/Interfaces/DbConnectionInterface.php
new file mode 100644
index 0000000..6b0b8b5
--- /dev/null
+++ b/design_patterns/abstract_factory/Interfaces/DbConnectionInterface.php
@@ -0,0 +1,12 @@
+<?php
+
+declare (strict_types = 1);
+
+interface DbConnectionInterface
+{
+    public function connect(array $config): void;
+
+    public function execute(string $sql, array $bindings = []): array;
+
+     public function getPdo(): PDO;
+}
\ No newline at end of file
diff --git a/design_patterns/abstract_factory/Interfaces/DbFactoryInterface.php b/design_patterns/abstract_factory/Interfaces/DbFactoryInterface.php
new file mode 100644
index 0000000..cf10ca6
--- /dev/null
+++ b/design_patterns/abstract_factory/Interfaces/DbFactoryInterface.php
@@ -0,0 +1,9 @@
+<?php
+
+declare (strict_types = 1);
+interface DbFactoryInterface
+{
+    public function connection(): DbConnectionInterface;
+    public function queryBuilder(): QueryBuilderInterface;
+    public function transaction(): TransactionInterface;
+}
\ No newline at end of file
diff --git a/design_patterns/abstract_factory/Interfaces/QueryBuilderInterface.php b/design_patterns/abstract_factory/Interfaces/QueryBuilderInterface.php
new file mode 100644
index 0000000..77a6c7f
--- /dev/null
+++ b/design_patterns/abstract_factory/Interfaces/QueryBuilderInterface.php
@@ -0,0 +1,14 @@
+<?php
+
+declare (strict_types = 1);
+
+interface QueryBuilderInterface
+{
+    public function select(string $table): self;
+
+    public function limit(int $limit): self;
+
+    public function get(): string;
+
+    public function paginate(int $limit, int $offset): self;
+}
\ No newline at end of file
diff --git a/design_patterns/abstract_factory/Interfaces/TransactionInterface.php b/design_patterns/abstract_factory/Interfaces/TransactionInterface.php
new file mode 100644
index 0000000..ee5018f
--- /dev/null
+++ b/design_patterns/abstract_factory/Interfaces/TransactionInterface.php
@@ -0,0 +1,9 @@
+<?php
+
+declare (strict_types = 1);
+interface TransactionInterface
+{
+    public function start(): void;
+    public function commit(): void;
+    public function rollback(): void;
+}
\ No newline at end of file
diff --git a/design_patterns/abstract_factory/MySQL/MySQLConnection.php b/design_patterns/abstract_factory/MySQL/MySQLConnection.php
new file mode 100644
index 0000000..f9480c5
--- /dev/null
+++ b/design_patterns/abstract_factory/MySQL/MySQLConnection.php
@@ -0,0 +1,36 @@
+<?php
+
+declare (strict_types = 1);
+
+class MySQLConnection implements DbConnectionInterface
+{
+    private ?PDO $pdo = null;
+
+    public function connect(array $config): void
+    {
+        if ($this->pdo !== null) {
+            return;
+        }
+
+        $dsn       = "mysql:host={$config['host']};dbname={$config['db']};charset={$config['charset']}";
+        $this->pdo = new PDO($dsn, $config['user'], $config['password'], [
+            PDO::ATTR_ERRMODE            => PDO::ERRMODE_EXCEPTION,
+            PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
+        ]);
+    }
+
+    public function execute(string $sql, array $bindings = []): array
+    {
+        if ($this->pdo === null) {
+            throw new RuntimeException('Ошибка подключения к базе данных');
+        }
+        $stmt = $this->pdo->prepare($sql);
+        $stmt->execute($bindings);
+        return $stmt->fetchAll();
+    }
+
+    public function getPdo(): PDO
+    {
+        return $this->pdo;
+    }
+}
diff --git a/design_patterns/abstract_factory/MySQL/MySQLQueryBuilder.php b/design_patterns/abstract_factory/MySQL/MySQLQueryBuilder.php
new file mode 100644
index 0000000..f50951d
--- /dev/null
+++ b/design_patterns/abstract_factory/MySQL/MySQLQueryBuilder.php
@@ -0,0 +1,39 @@
+<?php
+
+declare (strict_types = 1);
+class MySQLQueryBuilder implements QueryBuilderInterface
+{
+    private string $table = '';
+    private string $limit = '';
+
+    public function select(string $table): self
+    {
+        $this->table = $table;
+
+        return $this;
+    }
+
+    public function limit(int $limit): self
+    {
+        $this->limit = "LIMIT {$limit}";
+
+        return $this;
+    }
+
+    public function paginate(int $limit, int $offset): self
+    {
+        $this->limit = "LIMIT {$offset}, {$limit}";
+
+        return $this;
+    }
+
+    public function get(): string
+    {
+        $sql         = "SELECT * FROM {$this->table} {$this->limit}";
+        
+        $this->table = '';
+        $this->limit = '';
+
+        return $sql;
+    }
+}
diff --git a/design_patterns/abstract_factory/MySQL/MySQLTransaction.php b/design_patterns/abstract_factory/MySQL/MySQLTransaction.php
new file mode 100644
index 0000000..4860e22
--- /dev/null
+++ b/design_patterns/abstract_factory/MySQL/MySQLTransaction.php
@@ -0,0 +1,22 @@
+<?php
+
+declare (strict_types = 1);
+
+class MySQLTransaction implements TransactionInterface
+{
+    public function __construct(private DbConnectionInterface $connection)
+    {}
+
+    public function start(): void
+    {
+        $this->connection->getPdo()->beginTransaction();
+    }
+    public function commit(): void
+    {
+        $this->connection->getPdo()->commit();
+    }
+    public function rollback(): void
+    {
+        $this->connection->getPdo()->rollBack();
+    }
+}
\ No newline at end of file
diff --git a/design_patterns/abstract_factory/MySQL/MySqlFactory.php b/design_patterns/abstract_factory/MySQL/MySqlFactory.php
new file mode 100644
index 0000000..24957d4
--- /dev/null
+++ b/design_patterns/abstract_factory/MySQL/MySqlFactory.php
@@ -0,0 +1,25 @@
+<?php
+
+declare (strict_types = 1);
+
+class MySqlFactory implements DbFactoryInterface
+{
+    private ?DbConnectionInterface $connection = null;
+
+    public function connection(): DbConnectionInterface
+    {
+        if ($this->connection === null) {
+            $this->connection = new MySQLConnection();
+        }
+        return $this->connection;
+    }
+    public function queryBuilder(): QueryBuilderInterface
+    {
+        return new MySQLQueryBuilder();
+    }
+
+    public function transaction(): TransactionInterface
+    {
+        return new MySQLTransaction($this->connection());
+    }
+}
\ No newline at end of file
diff --git a/design_patterns/abstract_factory/PgSQL/PgSQLConnection.php b/design_patterns/abstract_factory/PgSQL/PgSQLConnection.php
new file mode 100644
index 0000000..6531c7b
--- /dev/null
+++ b/design_patterns/abstract_factory/PgSQL/PgSQLConnection.php
@@ -0,0 +1,38 @@
+<?php
+
+declare (strict_types = 1);
+
+class PgSQLConnection implements DbConnectionInterface
+{
+    private ?PDO $pdo = null;
+
+    public function connect(array $config): void
+    {
+        if ($this->pdo !== null) {
+            return;
+        }
+
+        $dsn       = "pgsql:host={$config['host']};dbname={$config['db']};charset={$config['charset']}";
+        $this->pdo = new PDO($dsn, $config['user'], $config['password'], 
+        [
+            PDO::ATTR_ERRMODE            => PDO::ERRMODE_EXCEPTION,
+            PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
+        ]);
+    }
+
+    public function execute(string $sql, array $bindings = []): array
+    {
+        if ($this->pdo === null) {
+            throw new RuntimeException('Ошибка подключения к базе данных');
+        }
+        
+        $stmt = $this->pdo->prepare($sql);
+        $stmt->execute($bindings);
+        return $stmt->fetchAll();
+    }
+
+    public function getPdo(): PDO
+    {
+        return $this->pdo;
+    }
+}
diff --git a/design_patterns/abstract_factory/PgSQL/PgSQLQueryBuilder.php b/design_patterns/abstract_factory/PgSQL/PgSQLQueryBuilder.php
new file mode 100644
index 0000000..fe569bf
--- /dev/null
+++ b/design_patterns/abstract_factory/PgSQL/PgSQLQueryBuilder.php
@@ -0,0 +1,40 @@
+<?php
+
+declare (strict_types = 1);
+
+class PgSQLQueryBuilder implements QueryBuilderInterface
+{
+    private string $table = '';
+    private string $limit = '';
+
+    public function select(string $table): self
+    {
+        $this->table = $table;
+
+        return $this;
+    }
+
+    public function limit(int $limit): self
+    {
+        $this->limit = "LIMIT {$limit}";
+
+        return $this;
+    }
+
+    public function paginate(int $limit, int $offset): self
+    {
+        $this->limit = "LIMIT {$limit} OFFSET {$offset}";
+
+        return $this;
+    }
+
+    public function get(): string
+    {
+        $sql         = "SELECT * FROM {$this->table} {$this->limit}";
+        
+        $this->table = '';
+        $this->limit = '';
+
+        return $sql;
+    }
+}
diff --git a/design_patterns/abstract_factory/PgSQL/PgSQLTransaction.php b/design_patterns/abstract_factory/PgSQL/PgSQLTransaction.php
new file mode 100644
index 0000000..c0a8c86
--- /dev/null
+++ b/design_patterns/abstract_factory/PgSQL/PgSQLTransaction.php
@@ -0,0 +1,22 @@
+<?php
+
+declare (strict_types = 1);
+
+class PgSQLTransaction implements TransactionInterface
+{
+    public function __construct(private DbConnectionInterface $connection)
+    {}
+
+    public function start(): void
+    {
+        $this->connection->getPdo()->beginTransaction();
+    }
+    public function commit(): void
+    {
+        $this->connection->getPdo()->commit();
+    }
+    public function rollback(): void
+    {
+        $this->connection->getPdo()->rollBack();
+    }
+}
\ No newline at end of file
diff --git a/design_patterns/abstract_factory/PgSQL/PgSqlFactory.php b/design_patterns/abstract_factory/PgSQL/PgSqlFactory.php
new file mode 100644
index 0000000..51e26c7
--- /dev/null
+++ b/design_patterns/abstract_factory/PgSQL/PgSqlFactory.php
@@ -0,0 +1,25 @@
+<?php
+
+declare (strict_types = 1);
+
+class PgSqlFactory implements DbFactoryInterface
+{
+    private ?DbConnectionInterface $connection = null;
+
+    public function connection(): DbConnectionInterface
+    {
+        if ($this->connection === null) {
+            $this->connection = new PgSQLConnection();
+        }
+        return $this->connection;
+    }
+    public function queryBuilder(): QueryBuilderInterface
+    {
+        return new PgSQLQueryBuilder();
+    }
+
+    public function transaction(): TransactionInterface
+    {
+        return new PgSQLTransaction($this->connection);
+    }
+}
\ No newline at end of file
diff --git a/design_patterns/abstract_factory/index.php b/design_patterns/abstract_factory/index.php
new file mode 100644
index 0000000..5a4ef55
--- /dev/null
+++ b/design_patterns/abstract_factory/index.php
@@ -0,0 +1,37 @@
+<?php
+
+declare(strict_types=1);
+
+$config = [
+    'driver' => env('DB_DRIVER', 'pgsql'),
+    'host' => env('DB_HOST', 'localhost'),
+    'db' => env('DB_DATABASE', 'localhost'),
+    'port' => env('DB_PORT'),
+    'user' => env('DB_USERNAME'),
+    'password' => env('DB_PASSWORD'),
+    'charset' => env('utf8mb4')
+];
+
+$factory = Container::make($config['driver']);
+
+$connection = $factory->connection();
+$connection->connect($config);
+
+//Пример запроса
+$sql = $factory->queryBuilder()
+    ->select('movie')
+    ->paginate(10, 20)
+    ->get();
+
+
+$movie = $connection->execute($sql);
+
+// Пример транзакции
+$transaction = $factory->transaction();
+$transaction->start();
+try {
+//    Что-то реализуем
+    $transaction->commit();
+} catch (\Exception $e) {
+    $transaction->rollback();
+}
\ No newline at end of file
diff --git a/design_patterns/observer/BonusListener.php b/design_patterns/observer/BonusListener.php
new file mode 100644
index 0000000..30b3daf
--- /dev/null
+++ b/design_patterns/observer/BonusListener.php
@@ -0,0 +1,11 @@
+<?php
+
+declare (strict_types = 1);
+
+class BonusListener implements ListenerInterface
+{
+    public function handle(object $event): void
+    {
+        echo "Пользователю {$event->userId} начислено 100 бонусов.";
+    }
+}
diff --git a/design_patterns/observer/EmailListener.php b/design_patterns/observer/EmailListener.php
new file mode 100644
index 0000000..e22aaae
--- /dev/null
+++ b/design_patterns/observer/EmailListener.php
@@ -0,0 +1,11 @@
+<?php
+
+declare (strict_types = 1);
+
+class EmailListener implements ListenerInterface
+{
+    public function handle(object $event): void
+    {
+        echo "Отправлено приветственное письмо на {$event->email}";
+    }
+}
diff --git a/design_patterns/observer/EventDispatcher.php b/design_patterns/observer/EventDispatcher.php
new file mode 100644
index 0000000..d7f6f3e
--- /dev/null
+++ b/design_patterns/observer/EventDispatcher.php
@@ -0,0 +1,23 @@
+<?php
+declare (strict_types = 1);
+
+class EventDispatcher
+{
+    private array $listeners = [];
+
+    public function listen(string $eventClass, ListenerInterface $listener): void
+    {
+        $this->listeners[$eventClass][] = $listener;
+    }
+
+    public function dispatch(object $event)
+    {
+        $eventClass = get_class($event);
+
+        $listenerList = $this->listeners[$eventClass] ?? [];
+
+        foreach ($listenerList as $listener) {
+            $listener->handle($event);
+        }
+    }
+}
diff --git a/design_patterns/observer/ListenerInterface.php b/design_patterns/observer/ListenerInterface.php
new file mode 100644
index 0000000..8d9591e
--- /dev/null
+++ b/design_patterns/observer/ListenerInterface.php
@@ -0,0 +1,8 @@
+<?php
+
+declare (strict_types = 1);
+
+interface ListenerInterface
+{
+    public function handle(object $event): void;
+}
diff --git a/design_patterns/observer/LogListener.php b/design_patterns/observer/LogListener.php
new file mode 100644
index 0000000..e58e4a2
--- /dev/null
+++ b/design_patterns/observer/LogListener.php
@@ -0,0 +1,11 @@
+<?php
+
+declare (strict_types = 1);
+
+class LogListener implements ListenerInterface
+{
+    public function handle(object $event): void
+    {
+        echo "Пользователь {$event->userId} успешно зарегистрирован.";
+    }
+}
diff --git a/design_patterns/observer/index.php b/design_patterns/observer/index.php
new file mode 100644
index 0000000..dbc0a0f
--- /dev/null
+++ b/design_patterns/observer/index.php
@@ -0,0 +1,18 @@
+<?php
+
+class UserRegistered
+{  
+    public function __construct(
+        public string $userId,
+        public string $email
+    ) {}
+}
+
+
+$action = new EventDispatcher();
+
+$action->listen(UserRegistered::class, new EmailListener());
+$action->listen(UserRegistered::class, new BonusListener());
+$action->listen(UserRegistered::class, new LogListener());
+
+$action->dispatch(new UserRegistered(1, 'example@mail.ru'));
\ No newline at end of file
diff --git a/design_patterns/query_builder/BuilderInterface.php b/design_patterns/query_builder/BuilderInterface.php
new file mode 100644
index 0000000..5fff31e
--- /dev/null
+++ b/design_patterns/query_builder/BuilderInterface.php
@@ -0,0 +1,24 @@
+<?php
+
+declare (strict_types = 1);
+
+interface BuilderInterface
+{
+    public function select(array $fields): self;
+
+    public function from(string $table): self;
+
+    public function where(string $condition): self;
+
+    public function andWhere(string $condition): self;
+
+    public function join(string $table, string $on): self;
+
+    public function orderBy(string $field, string $direction = 'ASC'): self;
+
+    public function limit(int $limit): self;
+
+    public function build(): string;
+
+    public function reset(): self;
+}
diff --git a/design_patterns/query_builder/QueryBuilder.php b/design_patterns/query_builder/QueryBuilder.php
new file mode 100644
index 0000000..2c7e584
--- /dev/null
+++ b/design_patterns/query_builder/QueryBuilder.php
@@ -0,0 +1,121 @@
+<?php
+
+declare (strict_types = 1);
+
+class QueryBuilder implements BuilderInterface
+{
+    protected array $fields   = [];
+    protected string $table   = '';
+    protected array $where    = [];
+    protected array $joins    = [];
+    protected string $orderBy = '';
+    protected string $limit   = '';
+
+    public function select(array $fields = ['*']): self
+    {
+        $this->fields = $fields;
+
+        return $this;
+    }
+
+    public function from(string $table): self
+    {
+        $this->table = $table;
+
+        return $this;
+    }
+
+    public function join(string $table, string $on): self
+    {
+        $this->joins[] = "JOIN {$table} ON {$on}";
+
+        return $this;
+    }
+
+    public function where(string $condition): self
+    {
+        if (! empty($this->where)) {
+            throw new LogicException('where() уже был вызван. Используйте andWhere()');
+        }
+
+        $this->where[] = $condition;
+
+        return $this;
+    }
+
+    public function andWhere(string $condition): self
+    {
+        $this->where[] = 'AND ' . $condition;
+
+        return $this;
+    }
+
+    public function orderBy(string $field, string $direction = 'ASC'): self
+    {
+        $direction = strtoupper($direction);
+
+        if (! in_array($direction, ['ASC', 'DESC'])) {
+            throw new InvalidArgumentException('Ошибка в выборе инструкции для сортировки');
+        }
+
+        $this->orderBy = "ORDER BY {$field} {$direction}";
+
+        return $this;
+    }
+
+    public function limit(int $limit, ?int $offset = null): self
+    {
+        if ($offset !== null) {
+            $this->limit = "LIMIT {$offset}, {$limit}";
+        } else {
+            $this->limit = "LIMIT {$limit}";
+        }
+        return $this;
+    }
+
+    public function build(): string
+    {
+        if (empty($this->fields)) {
+            throw new \Exception("Ошибка сборки запроса: не указаны поля (SELECT).");
+        }
+        if (empty($this->table)) {
+            throw new \Exception("Ошибка сборки запроса: не указана таблица (FROM).");
+        }
+
+        $sql = "SELECT " . implode(', ', $this->fields) . " FROM " . $this->table;
+
+        if (! empty($this->joins)) {
+            $sql .= " " . implode(' ', $this->joins);
+        }
+
+        if (! empty($this->where)) {
+            $sql .= ' WHERE ' . implode(' ', $this->where);
+        }
+
+        if (! empty($this->orderBy)) {
+            $sql .= " " . $this->orderBy;
+        }
+
+        if (! empty($this->limit)) {
+            $sql .= " " . $this->limit;
+        }
+
+        $result = $sql;
+
+        $this->reset();
+
+        return $result;
+    }
+
+    public function reset(): self
+    {
+        $this->fields  = [];
+        $this->table   = '';
+        $this->where   = [];
+        $this->joins   = [];
+        $this->orderBy = '';
+        $this->limit   = '';
+
+        return $this;
+    }
+}
diff --git a/design_patterns/strategy/CourierDelivery.php b/design_patterns/strategy/CourierDelivery.php
new file mode 100644
index 0000000..9bf4919
--- /dev/null
+++ b/design_patterns/strategy/CourierDelivery.php
@@ -0,0 +1,13 @@
+<?php
+
+declare (strict_types = 1);
+
+class CourierDelivery implements DeliveryInterface
+{
+    public function calc(array $order): float
+    {
+        $price = $order['quantity'] * $order['ratio'];
+
+        return (float) $price;
+    }
+}
\ No newline at end of file
diff --git a/design_patterns/strategy/DeliveryCalculatorService.php b/design_patterns/strategy/DeliveryCalculatorService.php
new file mode 100644
index 0000000..413e502
--- /dev/null
+++ b/design_patterns/strategy/DeliveryCalculatorService.php
@@ -0,0 +1,19 @@
+<?php
+
+declare (strict_types = 1);
+
+class DeliveryCalculatorService
+{
+    public function __construct(private DeliveryInterface $service)
+    {}
+
+    public function set(DeliveryInterface $service): void
+    {
+        $this->service = $service;
+    }
+
+    public function calculate(array $order): float
+    {
+        return $this->service->calc($order);
+    }
+}
\ No newline at end of file
diff --git a/design_patterns/strategy/DeliveryInterface.php b/design_patterns/strategy/DeliveryInterface.php
new file mode 100644
index 0000000..9bbb492
--- /dev/null
+++ b/design_patterns/strategy/DeliveryInterface.php
@@ -0,0 +1,8 @@
+<?php
+
+declare (strict_types = 1);
+
+interface DeliveryInterface
+{
+    public function calc(array $order): float;
+}
\ No newline at end of file
diff --git a/design_patterns/strategy/PickupDelivery.php b/design_patterns/strategy/PickupDelivery.php
new file mode 100644
index 0000000..df62f88
--- /dev/null
+++ b/design_patterns/strategy/PickupDelivery.php
@@ -0,0 +1,13 @@
+<?php
+
+declare (strict_types = 1);
+
+class PickupDelivery implements DeliveryInterface
+{
+    public function calc(array $order): float
+    {
+        $price = $order['weight'] * $order['distance'] + $order['kv'];
+
+        return (float) $price;
+    }
+}
\ No newline at end of file
diff --git a/design_patterns/strategy/PostDelivery.php b/design_patterns/strategy/PostDelivery.php
new file mode 100644
index 0000000..a082f92
--- /dev/null
+++ b/design_patterns/strategy/PostDelivery.php
@@ -0,0 +1,13 @@
+<?php
+
+declare (strict_types = 1);
+
+class PostDelivery implements DeliveryInterface
+{
+    public function calc(array $order): float
+    {
+        $price = ($order['weight'] * $order['tariff']) + $order['kv'];
+
+        return (float) $price;
+    }
+}
\ No newline at end of file
diff --git a/design_patterns/strategy/index.php b/design_patterns/strategy/index.php
new file mode 100644
index 0000000..478a064
--- /dev/null
+++ b/design_patterns/strategy/index.php
@@ -0,0 +1,37 @@
+<?php
+
+declare (strict_types = 1);
+
+$deliveryMapper = [
+    'courier' => new CourierDelivery(),
+    'pickup'  => new PickupDelivery(),
+    'post'    => new PostDelivery(),
+];
+
+$config = [
+    'driver' => 'post',
+];
+
+$order = [
+    'product_id' => 1,
+    'address'    => 'Moscow',
+    'weight'     => 2,
+    'tariff'     => 0.22,
+    'kv'         => 1,
+    'distance'   => 15,
+    'quantity'   => 10,
+];
+
+// Расчет 1 доставки
+$calculator = new DeliveryCalculatorService($deliveryMapper[$config['driver']]);
+$price      = $calculator->calculate($order);
+
+// Расчет по всем доставкам
+$allPrices = [];
+
+foreach ($deliveryMapper as $name => $class) {
+    $calculator->set($class);
+    $allPrices[$name] = $calculator->calculate($order);
+}
+
+print_r($allPrices);
diff --git a/design_patterns/template_method/AbstractImporter.php b/design_patterns/template_method/AbstractImporter.php
new file mode 100644
index 0000000..7ab3d0c
--- /dev/null
+++ b/design_patterns/template_method/AbstractImporter.php
@@ -0,0 +1,49 @@
+<?php
+
+declare(strict_types=1);
+
+abstract class AbstractImporter
+{
+    protected string $loadedData;
+
+    public function __construct(protected string $data)
+    {}
+    
+    final public function import(): array
+    {
+        try {
+            $loadedData = $this->load($this->data);
+            $parsedData = $this->parse($loadedData);
+            $validData  = $this->validate($parsedData);   
+            $entities   = $this->transform($validData); 
+            $this->beforeSave($entities);
+            return $this->saveToDb($entities);            
+        } catch (\Exception $e) {
+            return [
+                'success' => false,
+                'data'    => 'Ошибка импорта: ' . $e->getMessage()
+            ];
+        }
+    }
+
+    abstract protected function load(string $loaded);
+
+    abstract protected function parse(string $loadedData);
+
+    abstract protected function validate(array $parsedData);
+
+    abstract protected function transform(array $validData);
+
+    protected function saveToDb(array $entities): array
+    {
+        return [
+            'success' => true,
+            'data'    => "Успешно сохранено в БД " . count($entities) . " объектов",
+        ];
+    }
+
+    protected function beforeSave(array $entities): void
+    {
+
+    }
+}
\ No newline at end of file
diff --git a/design_patterns/template_method/CSVImporter.php b/design_patterns/template_method/CSVImporter.php
new file mode 100644
index 0000000..6a30348
--- /dev/null
+++ b/design_patterns/template_method/CSVImporter.php
@@ -0,0 +1,53 @@
+<?php
+
+declare(strict_types=1);
+
+class CSVImporter extends AbstractImporter
+{
+    protected function load(string $loaded): string
+    {
+        return file_get_contents($loaded);
+    }
+
+    protected function parse(string $loadedData): array
+    {
+        $rows = explode("\n", trim($loadedData));
+        $headers = str_getcsv(array_shift($rows));
+
+        if (empty($rows)) {
+            return [];
+        }
+       
+        $firstRow = str_getcsv($rows[0]);
+        return array_combine($headers, $firstRow) ?: [];
+    }
+
+    protected function validate(array $parsedData): array
+    {
+        $requiredFields = ['fio', 'pasport', 'phone'];
+
+        foreach ($requiredFields as $field) {
+            if (! isset($parsedData[$field])) {
+                throw new Exception('Отсутствует ключ ' . $field);
+            }
+        }
+
+        return $parsedData;
+    }
+
+    protected function transform(array $validData): array
+    {
+
+        return [
+            'fio'  => $validData['fio'],
+            'pasport'   => $validData['pasport'],
+            'phone' => $validData['phone'],
+        ];
+    }
+
+    protected function beforeSave(array $entities): void
+    {
+        $path = __DIR__ . "/csv_data_{$entities['orderId']}.txt";
+        file_put_contents($path, $entities);
+    }
+}
\ No newline at end of file
diff --git a/design_patterns/template_method/JsonImporter.php b/design_patterns/template_method/JsonImporter.php
new file mode 100644
index 0000000..9c43696
--- /dev/null
+++ b/design_patterns/template_method/JsonImporter.php
@@ -0,0 +1,39 @@
+<?php
+
+declare(strict_types=1);
+
+class JsonImporter extends AbstractImporter
+{
+    protected function load(string $loaded): string
+    {
+        return file_get_contents($loaded);
+    }
+
+    protected function parse(string $loadedData): array
+    {
+        return json_decode($loadedData, true) ?? [];
+    }
+
+    protected function validate(array $parsedData): array
+    {
+        $requiredFields = ['orderId', 'amount', 'merchant'];
+
+        foreach ($requiredFields as $field) {
+            if (! isset($parsedData[$field])) {
+                throw new Exception('Отсутствует ключ ' . $field);
+            }
+        }
+
+        return $parsedData;
+    }
+
+    protected function transform(array $validData): array
+    {
+
+        return [
+            'orderId'  => $validData['orderId'],
+            'amount'   => $validData['amount'],
+            'merchant' => $validData['merchant'],
+        ];
+    }
+}
\ No newline at end of file
diff --git a/design_patterns/template_method/XMLImporter.php b/design_patterns/template_method/XMLImporter.php
new file mode 100644
index 0000000..aba3686
--- /dev/null
+++ b/design_patterns/template_method/XMLImporter.php
@@ -0,0 +1,44 @@
+<?php
+
+declare(strict_types=1);
+
+class XMLImporter extends AbstractImporter
+{
+    protected function load(string $loaded): string
+    {
+        return file_get_contents($loaded);
+    }
+
+    protected function parse(string $loadedData): array
+    {
+        try {
+            $dataXml = new SimpleXMLElement($loadedData);
+        } catch (\Exception $e) {
+            return [];
+        }
+
+        return json_decode(json_encode($dataXml), true) ?? [];
+    }
+
+    protected function validate(array $parsedData): array
+    {
+        $requiredFields = ['userId', 'email', 'phone'];
+
+        foreach ($requiredFields as $field) {
+            if (! isset($parsedData[$field])) {
+                throw new Exception('Отсутствует ключ ' . $field);
+            }
+        }
+
+        return $parsedData;
+    }
+
+    protected function transform(array $validData): array
+    {
+        return [
+            'userId'  => $validData['userId'],
+            'email'   => $validData['email'],
+            'phone' => $validData['phone'],
+        ];
+    }
+}
\ No newline at end of file