Installation and Configuration

Doctrine can be installed with Composer <https://getcomposer.org>_.

Define the following requirement in your composer.json file:

::

{
    "require": {
        "doctrine/orm": "*"
    }
}

Then call composer install from your command line. If you don't know how Composer works, check out their Getting Started <https://getcomposer.org/doc/00-intro.md>_ to set up.

Class loading

Autoloading is taken care of by Composer. You just have to include the composer autoload file in your project:

.. code-block:: php

<?php
// bootstrap.php
// Include Composer Autoload (relative to project root).
require_once "vendor/autoload.php";

Obtaining an EntityManager

Once you have prepared the class loading, you acquire an EntityManager instance. The EntityManager class is the primary access point to ORM functionality provided by Doctrine.

.. code-block:: php

<?php
// bootstrap.php
require_once "vendor/autoload.php";

use Doctrine\DBAL\DriverManager;
use Doctrine\ORM\EntityManager;
use Doctrine\ORM\ORMSetup;

$paths = ['/path/to/entity-files'];
$isDevMode = false;

// the connection configuration
$dbParams = [
    'driver'   => 'pdo_mysql',
    'user'     => 'root',
    'password' => '',
    'dbname'   => 'foo',
];

$config = ORMSetup::createAttributeMetadataConfig($paths, $isDevMode);
// on PHP < 8.4, use ORMSetup::createAttributeMetadataConfiguration() instead
$connection = DriverManager::getConnection($dbParams, $config);
$entityManager = new EntityManager($connection, $config);

Or if you prefer XML:

.. code-block:: php

<?php
$paths = ['/path/to/xml-mappings'];
$config = ORMSetup::createXMLMetadataConfig($paths, $isDevMode);
// on PHP < 8.4, use ORMSetup::createXMLMetadataConfiguration() instead
$connection = DriverManager::getConnection($dbParams, $config);
$entityManager = new EntityManager($connection, $config);

Inside the ORMSetup methods several assumptions are made:

• If $isDevMode is true caching is done in memory with the ArrayAdapter. Proxy objects are recreated on every request.
• If $isDevMode is false, check for Caches in the order APCu, Redis (127.0.0.1:6379), Memcache (127.0.0.1:11211) unless $cache is passed as fourth argument.
• If $isDevMode is false, set then proxy classes have to be explicitly created through the command line.
• If third argument $proxyDir is not set, use the systems temporary directory.

.. note::

In order to have ``ORMSetup`` configure the cache automatically, the library ``symfony/cache``
has to be installed as a dependency.

If you want to configure Doctrine in more detail, take a look at the :doc:Advanced Configuration </reference/advanced-configuration> section.

.. note::

You can learn more about the database connection configuration in the
`Doctrine DBAL connection configuration reference <https://docs.doctrine-project.org/projects/doctrine-dbal/en/stable/reference/configuration.html>`_.

Setting up the Commandline Tool

Doctrine ships with a number of command line tools that are very helpful during development. In order to make use of them, create an executable PHP script in your project as described in the :doc:tools chapter <../reference/tools>.