diff --git a/src/Symfony/Component/DomCrawler/Crawler.php b/src/Symfony/Component/DomCrawler/Crawler.php
index 63a7410ef3..8ae48bc98e 100644
--- a/src/Symfony/Component/DomCrawler/Crawler.php
+++ b/src/Symfony/Component/DomCrawler/Crawler.php
@@ -22,6 +22,9 @@ use Symfony\Component\CssSelector\CssSelector;
  */
 class Crawler extends \SplObjectStorage
 {
+    /**
+     * @var string The current URI or the base href value
+     */
     private $uri;
 
     /**
@@ -75,8 +78,10 @@ class Crawler extends \SplObjectStorage
     /**
      * Adds HTML/XML content.
      *
-     * @param string $content A string to parse as HTML/XML
-     * @param string $type    The content type of the string
+     * @param string      $content A string to parse as HTML/XML
+     * @param null|string $type    The content type of the string
+     *
+     * @return null|void
      */
     public function addContent($content, $type = null)
     {
@@ -228,7 +233,7 @@ class Crawler extends \SplObjectStorage
      *
      * @param integer $position The position
      *
-     * @return A new instance of the Crawler with the selected node, or an empty Crawler if it does not exist.
+     * @return Crawler A new instance of the Crawler with the selected node, or an empty Crawler if it does not exist.
      *
      * @api
      */
diff --git a/src/Symfony/Component/DomCrawler/Field/ChoiceFormField.php b/src/Symfony/Component/DomCrawler/Field/ChoiceFormField.php
index d3e9c9939d..2e192cb190 100644
--- a/src/Symfony/Component/DomCrawler/Field/ChoiceFormField.php
+++ b/src/Symfony/Component/DomCrawler/Field/ChoiceFormField.php
@@ -22,8 +22,17 @@ namespace Symfony\Component\DomCrawler\Field;
  */
 class ChoiceFormField extends FormField
 {
+    /**
+     * @var string
+     */
     private $type;
+    /**
+     * @var Boolean
+     */
     private $multiple;
+    /**
+     * @var array
+     */
     private $options;
 
     /**
@@ -44,7 +53,7 @@ class ChoiceFormField extends FormField
     /**
      * Check if the current selected option is disabled
      *
-     * @return bool
+     * @return Boolean
      */
     public function isDisabled()
     {
@@ -62,8 +71,6 @@ class ChoiceFormField extends FormField
      *
      * @param string $value The value of the field
      *
-     * @throws \InvalidArgumentException When value type provided is not correct
-     *
      * @api
      */
     public function select($value)
@@ -74,7 +81,7 @@ class ChoiceFormField extends FormField
     /**
      * Ticks a checkbox.
      *
-     * @throws \InvalidArgumentException When value type provided is not correct
+     * @throws \LogicException When the type provided is not correct
      *
      * @api
      */
@@ -90,7 +97,7 @@ class ChoiceFormField extends FormField
     /**
      * Ticks a checkbox.
      *
-     * @throws \InvalidArgumentException When value type provided is not correct
+     * @throws \LogicException When the type provided is not correct
      *
      * @api
      */
@@ -248,7 +255,7 @@ class ChoiceFormField extends FormField
     /**
      * Returns option value with associated disabled flag
      *
-     * @param type $node
+     * @param \DOMNode $node
      *
      * @return array
      */
diff --git a/src/Symfony/Component/DomCrawler/Field/FormField.php b/src/Symfony/Component/DomCrawler/Field/FormField.php
index b21bb38ea8..6412272c2e 100644
--- a/src/Symfony/Component/DomCrawler/Field/FormField.php
+++ b/src/Symfony/Component/DomCrawler/Field/FormField.php
@@ -18,11 +18,29 @@ namespace Symfony\Component\DomCrawler\Field;
  */
 abstract class FormField
 {
+    /**
+     * @var \DOMNode
+     */
     protected $node;
+    /**
+     * @var string
+     */
     protected $name;
+    /**
+     * @var string
+     */
     protected $value;
+    /**
+     * @var \DOMDocument
+     */
     protected $document;
+    /**
+     * @var \DOMXPath
+     */
     protected $xpath;
+    /**
+     * @var Boolean
+     */
     protected $disabled;
 
     /**
@@ -87,6 +105,11 @@ abstract class FormField
         return true;
     }
 
+    /**
+     * Check if the current field is disabled
+     *
+     * @return Boolean
+     */
     public function isDisabled()
     {
         return $this->node->hasAttribute('disabled');
diff --git a/src/Symfony/Component/DomCrawler/Form.php b/src/Symfony/Component/DomCrawler/Form.php
index e048264dad..5d371921a8 100644
--- a/src/Symfony/Component/DomCrawler/Form.php
+++ b/src/Symfony/Component/DomCrawler/Form.php
@@ -22,7 +22,13 @@ use Symfony\Component\DomCrawler\Field\FormField;
  */
 class Form extends Link implements \ArrayAccess
 {
+    /**
+     * @var \DOMNode
+     */
     private $button;
+    /**
+     * @var Field\FormField[]
+     */
     private $fields;
 
     /**
@@ -58,6 +64,8 @@ class Form extends Link implements \ArrayAccess
      *
      * @param array $values An array of field values
      *
+     * @return Form
+     *
      * @api
      */
     public function setValues(array $values)
@@ -253,8 +261,6 @@ class Form extends Link implements \ArrayAccess
      *
      * @param FormField $field The field
      *
-     * @return FormField The field instance
-     *
      * @api
      */
     public function set(FormField $field)
diff --git a/src/Symfony/Component/DomCrawler/Link.php b/src/Symfony/Component/DomCrawler/Link.php
index 39ddb8ca97..1804111f2e 100644
--- a/src/Symfony/Component/DomCrawler/Link.php
+++ b/src/Symfony/Component/DomCrawler/Link.php
@@ -20,8 +20,17 @@ namespace Symfony\Component\DomCrawler;
  */
 class Link
 {
+    /**
+     * @var \DOMNode A \DOMNode instance
+     */
     protected $node;
+    /**
+     * @var string The method to use for the link
+     */
     protected $method;
+    /**
+     * @var string The URI of the page where the link is embedded (or the base href)
+     */
     protected $currentUri;
 
     /**
@@ -31,7 +40,7 @@ class Link
      * @param string   $currentUri The URI of the page where the link is embedded (or the base href)
      * @param string   $method     The method to use for the link (get by default)
      *
-     * @throws \LogicException if the node is not a link
+     * @throws \InvalidArgumentException if the node is not a link
      *
      * @api
      */
@@ -90,7 +99,7 @@ class Link
         }
 
         // only an anchor
-        if ('#' ===  $uri[0]) {
+        if ('#' === $uri[0]) {
             $baseUri = $this->currentUri;
             if (false !== $pos = strpos($baseUri, '#')) {
                 $baseUri = substr($baseUri, 0, $pos);
@@ -120,11 +129,23 @@ class Link
         return substr($this->currentUri, 0, strrpos($this->currentUri, '/') + 1).$uri;
     }
 
+    /**
+     * Returns raw uri data
+     *
+     * @return string
+     */
     protected function getRawUri()
     {
         return $this->node->getAttribute('href');
     }
 
+    /**
+     * Sets current \DOMNode instance
+     *
+     * @param \DOMNode $node A \DOMNode instance
+     *
+     * @throws \LogicException If given node is not an anchor
+     */
     protected function setNode(\DOMNode $node)
     {
         if ('a' != $node->nodeName) {
diff --git a/src/Symfony/Component/Finder/Comparator/DateComparator.php b/src/Symfony/Component/Finder/Comparator/DateComparator.php
index e82b295dc0..f5ad8f39ca 100644
--- a/src/Symfony/Component/Finder/Comparator/DateComparator.php
+++ b/src/Symfony/Component/Finder/Comparator/DateComparator.php
@@ -32,7 +32,10 @@ class DateComparator extends Comparator
             throw new \InvalidArgumentException(sprintf('Don\'t understand "%s" as a date test.', $test));
         }
 
-        if (false === $target = @strtotime($matches[2])) {
+        try {
+            $date = new \DateTime($matches[2]);
+            $target = $date->format('U');
+        } catch (\Exception $e) {
             throw new \InvalidArgumentException(sprintf('"%s" is not a valid date.', $matches[2]));
         }
 
diff --git a/src/Symfony/Component/Locale/Stub/StubIntlDateFormatter.php b/src/Symfony/Component/Locale/Stub/StubIntlDateFormatter.php
index b53d55967a..edc952094f 100644
--- a/src/Symfony/Component/Locale/Stub/StubIntlDateFormatter.php
+++ b/src/Symfony/Component/Locale/Stub/StubIntlDateFormatter.php
@@ -174,13 +174,18 @@ class StubIntlDateFormatter
             throw new MethodArgumentValueNotImplementedException(__METHOD__, 'timestamp', $timestamp, 'Only integer unix timestamps are supported');
         }
 
-        if (!is_int($timestamp)) {
-            // behave like the intl extension
+        // behave like the intl extension
+        if (!is_int($timestamp) && version_compare(\PHP_VERSION, '5.3.4', '<')) {
             StubIntl::setErrorCode(StubIntl::U_ILLEGAL_ARGUMENT_ERROR);
 
             return false;
         }
 
+        // As of PHP 5.3.4, IntlDateFormatter::format() accepts DateTime instances
+        if ($timestamp instanceOf \DateTime && version_compare(\PHP_VERSION, '5.3.4', '>=')) {
+            $timestamp = $timestamp->getTimestamp();
+        }
+
         $transformer = new FullTransformer($this->getPattern(), $this->getTimeZoneId());
         $formatted = $transformer->format($this->createDateTime($timestamp));
 
diff --git a/src/Symfony/Component/Locale/Tests/Stub/StubIntlDateFormatterTest.php b/src/Symfony/Component/Locale/Tests/Stub/StubIntlDateFormatterTest.php
index 121fc9740c..43ad743734 100644
--- a/src/Symfony/Component/Locale/Tests/Stub/StubIntlDateFormatterTest.php
+++ b/src/Symfony/Component/Locale/Tests/Stub/StubIntlDateFormatterTest.php
@@ -274,6 +274,19 @@ class StubIntlDateFormatterTest extends LocaleTestCase
             array('zzzzz', 0, 'GMT+00:00'),
         );
 
+        // As of PHP 5.3.4, IntlDateFormatter::format() accepts DateTime instances
+        if (version_compare(\PHP_VERSION, '5.3.4', '>=')) {
+            $dateTime = new \DateTime('@0');
+
+            /* general, DateTime */
+            $formatData[] = array('y-M-d', $dateTime, '1970-1-1');
+            $formatData[] = array("yyyy.MM.dd 'at' HH:mm:ss zzz", $dateTime, '1970.01.01 at 00:00:00 GMT+00:00');
+            $formatData[] = array("EEE, MMM d, ''yy", $dateTime, "Thu, Jan 1, '70");
+            $formatData[] = array('h:mm a', $dateTime, '12:00 AM');
+            $formatData[] = array('K:mm a, z', $dateTime, '0:00 AM, GMT+00:00');
+            $formatData[] = array('yyyyy.MMMM.dd hh:mm aaa', $dateTime, '01970.January.01 12:00 AM');
+        }
+
         return $formatData;
     }