diff --git a/src/Symfony/Component/Dotenv/CHANGELOG.md b/src/Symfony/Component/Dotenv/CHANGELOG.md
index e004ed8d75d67..29fa3681bf557 100644
--- a/src/Symfony/Component/Dotenv/CHANGELOG.md
+++ b/src/Symfony/Component/Dotenv/CHANGELOG.md
@@ -1,6 +1,11 @@
 CHANGELOG
 =========
 
+5.4
+---
+
+ * Add `dotenv:dump` command to compile the contents of the .env files into a PHP-optimized file called `.env.local.php`
+
 5.1.0
 -----
 
diff --git a/src/Symfony/Component/Dotenv/Command/DotenvDumpCommand.php b/src/Symfony/Component/Dotenv/Command/DotenvDumpCommand.php
new file mode 100644
index 0000000000000..e044199433f0f
--- /dev/null
+++ b/src/Symfony/Component/Dotenv/Command/DotenvDumpCommand.php
@@ -0,0 +1,113 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Dotenv\Command;
+
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Component\DependencyInjection\Attribute\Autoconfigure;
+use Symfony\Component\Dotenv\Dotenv;
+
+/**
+ * A console command to compile .env files into a PHP-optimized file called .env.local.php.
+ *
+ * @internal
+ */
+#[Autoconfigure(bind: ['$dotenvPath' => '%kernel.project_dir%/.env', '$defaultEnv' => '%kernel.environment%'])]
+final class DotenvDumpCommand extends Command
+{
+    protected static $defaultName = 'dotenv:dump';
+    protected static $defaultDescription = 'Compiles .env files to .env.local.php';
+
+    private $dotenvPath;
+    private $defaultEnv;
+
+    public function __construct(string $dotenvPath, string $defaultEnv = null)
+    {
+        $this->dotenvPath = $dotenvPath;
+        $this->defaultEnv = $defaultEnv;
+
+        parent::__construct();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function configure()
+    {
+        $this
+            ->setDefinition([
+                new InputArgument('env', null === $this->defaultEnv ? InputArgument::REQUIRED : InputArgument::OPTIONAL, 'The application environment to dump .env files for - e.g. "prod".'),
+            ])
+            ->addOption('empty', null, InputOption::VALUE_NONE, 'Ignore the content of .env files')
+            ->setHelp(<<<'EOT'
+The <info>%command.name%</info> command compiles .env files into a PHP-optimized file called .env.local.php.
+
+    <info>%command.full_name%</info>
+EOT
+            )
+        ;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function execute(InputInterface $input, OutputInterface $output): int
+    {
+        $env = $input->getArgument('env') ?? $this->defaultEnv;
+
+        if ($input->getOption('empty')) {
+            $vars = ['APP_ENV' => $env];
+        } else {
+            $vars = $this->loadEnv($env);
+            $env = $vars['APP_ENV'];
+        }
+
+        $vars = var_export($vars, true);
+        $vars = <<<EOF
+<?php
+
+// This file was generated by running "php bin/console dotenv:dump $env"
+
+return $vars;
+
+EOF;
+        file_put_contents($this->dotenvPath.'.local.php', $vars, \LOCK_EX);
+
+        $output->writeln(sprintf('Successfully dumped .env files in <info>.env.local.php</> for the <info>%s</> environment.', $env));
+
+        return 0;
+    }
+
+    private function loadEnv(string $env): array
+    {
+        $dotenv = new Dotenv();
+        $composerFile = \dirname($this->dotenvPath).'/composer.json';
+        $testEnvs = (is_file($composerFile) ? json_decode(file_get_contents($composerFile), true) : [])['extra']['runtime']['test_envs'] ?? ['test'];
+
+        $globalsBackup = [$_SERVER, $_ENV];
+        unset($_SERVER['APP_ENV']);
+        $_ENV = ['APP_ENV' => $env];
+        $_SERVER['SYMFONY_DOTENV_VARS'] = implode(',', array_keys($_SERVER));
+
+        try {
+            $dotenv->loadEnv($this->dotenvPath, null, 'dev', $testEnvs);
+            unset($_ENV['SYMFONY_DOTENV_VARS']);
+
+            return $_ENV;
+        } finally {
+            [$_SERVER, $_ENV] = $globalsBackup;
+        }
+    }
+}
diff --git a/src/Symfony/Component/Dotenv/Tests/Command/DotenvDumpCommandTest.php b/src/Symfony/Component/Dotenv/Tests/Command/DotenvDumpCommandTest.php
new file mode 100644
index 0000000000000..c1f3e959f9199
--- /dev/null
+++ b/src/Symfony/Component/Dotenv/Tests/Command/DotenvDumpCommandTest.php
@@ -0,0 +1,102 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Dotenv\Tests\Command;
+
+use PHPUnit\Framework\TestCase;
+use Symfony\Component\Console\Application;
+use Symfony\Component\Console\Tester\CommandTester;
+use Symfony\Component\Dotenv\Command\DotenvDumpCommand;
+
+class DotenvDumpCommandTest extends TestCase
+{
+    protected function setUp(): void
+    {
+        file_put_contents(__DIR__.'/.env', <<<EOF
+APP_ENV=dev
+APP_SECRET=abc123
+EOF
+        );
+
+        file_put_contents(__DIR__.'/.env.local', <<<EOF
+APP_LOCAL=yes
+EOF
+        );
+    }
+
+    protected function tearDown(): void
+    {
+        @unlink(__DIR__.'/.env');
+        @unlink(__DIR__.'/.env.local');
+        @unlink(__DIR__.'/.env.local.php');
+        @unlink(__DIR__.'/composer.json');
+    }
+
+    public function testExecute()
+    {
+        $command = $this->createCommand();
+        $command->execute([
+            'env' => 'test',
+        ]);
+
+        $this->assertFileExists(__DIR__.'/.env.local.php');
+
+        $vars = require __DIR__.'/.env.local.php';
+        $this->assertSame([
+            'APP_ENV' => 'test',
+            'APP_SECRET' => 'abc123',
+        ], $vars);
+    }
+
+    public function testExecuteEmpty()
+    {
+        $command = $this->createCommand();
+        $command->execute([
+            'env' => 'test',
+            '--empty' => true,
+        ]);
+
+        $this->assertFileExists(__DIR__.'/.env.local.php');
+
+        $vars = require __DIR__.'/.env.local.php';
+        $this->assertSame(['APP_ENV' => 'test'], $vars);
+    }
+
+    public function testExecuteTestEnvs()
+    {
+        file_put_contents(__DIR__.'/composer.json', <<<EOF
+{"extra":{"runtime":{"test_envs":[]}}}
+EOF
+        );
+
+        $command = $this->createCommand();
+        $command->execute([
+            'env' => 'test',
+        ]);
+
+        $this->assertFileExists(__DIR__.'/.env.local.php');
+
+        $vars = require __DIR__.'/.env.local.php';
+        $this->assertSame([
+            'APP_ENV' => 'test',
+            'APP_SECRET' => 'abc123',
+            'APP_LOCAL' => 'yes',
+        ], $vars);
+    }
+
+    private function createCommand(): CommandTester
+    {
+        $application = new Application();
+        $application->add(new DotenvDumpCommand(__DIR__.'/.env'));
+
+        return new CommandTester($application->find('dotenv:dump'));
+    }
+}
diff --git a/src/Symfony/Component/Dotenv/composer.json b/src/Symfony/Component/Dotenv/composer.json
index 9bd6cda177f1c..8ef8831988bee 100644
--- a/src/Symfony/Component/Dotenv/composer.json
+++ b/src/Symfony/Component/Dotenv/composer.json
@@ -20,6 +20,7 @@
         "symfony/deprecation-contracts": "^2.1"
     },
     "require-dev": {
+        "symfony/console": "^4.4|^5.0|^6.0",
         "symfony/process": "^4.4|^5.0|^6.0"
     },
     "autoload": {