diff --git a/src/Symfony/Component/DependencyInjection/EnvVarProcessor.php b/src/Symfony/Component/DependencyInjection/EnvVarProcessor.php
index bf34c593d638a..76f9348e1deab 100644
--- a/src/Symfony/Component/DependencyInjection/EnvVarProcessor.php
+++ b/src/Symfony/Component/DependencyInjection/EnvVarProcessor.php
@@ -36,6 +36,7 @@ public static function getProvidedTypes()
             'base64' => 'string',
             'bool' => 'bool',
             'const' => 'bool|int|float|string|array',
+            'csv' => 'array',
             'file' => 'string',
             'float' => 'float',
             'int' => 'int',
@@ -149,6 +150,10 @@ public function getEnv($prefix, $name, \Closure $getEnv)
             }, $env);
         }
 
+        if ('csv' === $prefix) {
+            return str_getcsv($env);
+        }
+
         throw new RuntimeException(sprintf('Unsupported env var prefix "%s".', $prefix));
     }
 
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Compiler/RegisterEnvVarProcessorsPassTest.php b/src/Symfony/Component/DependencyInjection/Tests/Compiler/RegisterEnvVarProcessorsPassTest.php
index cddb62dce9826..e330017bcd8e8 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Compiler/RegisterEnvVarProcessorsPassTest.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Compiler/RegisterEnvVarProcessorsPassTest.php
@@ -33,6 +33,7 @@ public function testSimpleProcessor()
             'base64' => array('string'),
             'bool' => array('bool'),
             'const' => array('bool', 'int', 'float', 'string', 'array'),
+            'csv' => array('array'),
             'file' => array('string'),
             'float' => array('float'),
             'int' => array('int'),
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Dumper/PhpDumperTest.php b/src/Symfony/Component/DependencyInjection/Tests/Dumper/PhpDumperTest.php
index 2025cbe943764..adf306310fb6e 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Dumper/PhpDumperTest.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Dumper/PhpDumperTest.php
@@ -371,6 +371,23 @@ public function testDumpedBase64EnvParameters()
         $this->assertSame('world', $container->getParameter('hello'));
     }
 
+    public function testDumpedCsvEnvParameters()
+    {
+        $container = new ContainerBuilder();
+        $container->setParameter('env(foo)', 'foo,bar');
+        $container->setParameter('hello', '%env(csv:foo)%');
+        $container->compile();
+
+        $dumper = new PhpDumper($container);
+        $dumper->dump();
+
+        $this->assertStringEqualsFile(self::$fixturesPath.'/php/services_csv_env.php', $dumper->dump(array('class' => 'Symfony_DI_PhpDumper_Test_CsvParameters')));
+
+        require self::$fixturesPath.'/php/services_csv_env.php';
+        $container = new \Symfony_DI_PhpDumper_Test_CsvParameters();
+        $this->assertSame(array('foo', 'bar'), $container->getParameter('hello'));
+    }
+
     public function testCustomEnvParameters()
     {
         $container = new ContainerBuilder();
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_csv_env.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_csv_env.php
new file mode 100644
index 0000000000000..99215f5fd685b
--- /dev/null
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_csv_env.php
@@ -0,0 +1,135 @@
+<?php
+
+use Symfony\Component\DependencyInjection\Argument\RewindableGenerator;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+use Symfony\Component\DependencyInjection\Container;
+use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;
+use Symfony\Component\DependencyInjection\Exception\LogicException;
+use Symfony\Component\DependencyInjection\Exception\RuntimeException;
+use Symfony\Component\DependencyInjection\ParameterBag\FrozenParameterBag;
+
+/**
+ * This class has been auto-generated
+ * by the Symfony Dependency Injection Component.
+ *
+ * @final since Symfony 3.3
+ */
+class Symfony_DI_PhpDumper_Test_CsvParameters extends Container
+{
+    private $parameters;
+    private $targetDirs = array();
+
+    /**
+     * @internal but protected for BC on cache:clear
+     */
+    protected $privates = array();
+
+    public function __construct()
+    {
+        $this->parameters = $this->getDefaultParameters();
+
+        $this->services = $this->privates = array();
+
+        $this->aliases = array();
+    }
+
+    public function reset()
+    {
+        $this->privates = array();
+        parent::reset();
+    }
+
+    public function compile()
+    {
+        throw new LogicException('You cannot compile a dumped container that was already compiled.');
+    }
+
+    public function isCompiled()
+    {
+        return true;
+    }
+
+    public function getRemovedIds()
+    {
+        return array(
+            'Psr\\Container\\ContainerInterface' => true,
+            'Symfony\\Component\\DependencyInjection\\ContainerInterface' => true,
+        );
+    }
+
+    public function getParameter($name)
+    {
+        $name = (string) $name;
+
+        if (!(isset($this->parameters[$name]) || isset($this->loadedDynamicParameters[$name]) || array_key_exists($name, $this->parameters))) {
+            throw new InvalidArgumentException(sprintf('The parameter "%s" must be defined.', $name));
+        }
+        if (isset($this->loadedDynamicParameters[$name])) {
+            return $this->loadedDynamicParameters[$name] ? $this->dynamicParameters[$name] : $this->getDynamicParameter($name);
+        }
+
+        return $this->parameters[$name];
+    }
+
+    public function hasParameter($name)
+    {
+        $name = (string) $name;
+
+        return isset($this->parameters[$name]) || isset($this->loadedDynamicParameters[$name]) || array_key_exists($name, $this->parameters);
+    }
+
+    public function setParameter($name, $value)
+    {
+        throw new LogicException('Impossible to call set() on a frozen ParameterBag.');
+    }
+
+    public function getParameterBag()
+    {
+        if (null === $this->parameterBag) {
+            $parameters = $this->parameters;
+            foreach ($this->loadedDynamicParameters as $name => $loaded) {
+                $parameters[$name] = $loaded ? $this->dynamicParameters[$name] : $this->getDynamicParameter($name);
+            }
+            $this->parameterBag = new FrozenParameterBag($parameters);
+        }
+
+        return $this->parameterBag;
+    }
+
+    private $loadedDynamicParameters = array(
+        'hello' => false,
+    );
+    private $dynamicParameters = array();
+
+    /**
+     * Computes a dynamic parameter.
+     *
+     * @param string The name of the dynamic parameter to load
+     *
+     * @return mixed The value of the dynamic parameter
+     *
+     * @throws InvalidArgumentException When the dynamic parameter does not exist
+     */
+    private function getDynamicParameter($name)
+    {
+        switch ($name) {
+            case 'hello': $value = $this->getEnv('csv:foo'); break;
+            default: throw new InvalidArgumentException(sprintf('The dynamic parameter "%s" must be defined.', $name));
+        }
+        $this->loadedDynamicParameters[$name] = true;
+
+        return $this->dynamicParameters[$name] = $value;
+    }
+
+    /**
+     * Gets the default parameters.
+     *
+     * @return array An array of the default parameters
+     */
+    protected function getDefaultParameters()
+    {
+        return array(
+            'env(foo)' => 'foo,bar',
+        );
+    }
+}