5177 change echo and print in examples

book/doctrine.rst

@@ -1199,7 +1199,7 @@ to the given ``Category`` object via their ``category_id`` value.
         $category = $product->getCategory();
 
         // prints "Proxies\AppBundleEntityCategoryProxy"
-        echo get_class($category);
+        dump(get_class($category));
 
     This proxy object extends the true ``Category`` object, and looks and
     acts exactly like it. The difference is that, by using a proxy object,

book/translation.rst

@@ -12,11 +12,11 @@ wrapping each with a function capable of translating the text (or "message")
 into the language of the user::
 
     // text will *always* print out in English
-    echo 'Hello World';
+    dump('Hello World');
 
     // text can be translated into the end-user's language or
     // default to English
-    echo $translator->trans('Hello World');
+    dump($translator->trans('Hello World'));
 
 .. note::
 

components/class_loader/class_map_generator.rst

@@ -50,7 +50,7 @@ method::
 
     use Symfony\Component\ClassLoader\ClassMapGenerator;
 
-    print_r(ClassMapGenerator::createMap(__DIR__.'/library'));
+    dump(ClassMapGenerator::createMap(__DIR__.'/library'));
 
 Given the files and class from the table above, you should see an output like
 this:

components/css_selector.rst

@@ -49,7 +49,7 @@ equivalents::
 
     use Symfony\Component\CssSelector\CssSelector;
 
-    print CssSelector::toXPath('div.item > h4 > a');
+    dump(CssSelector::toXPath('div.item > h4 > a'));
 
 This gives the following output:
 

components/dom_crawler.rst

@@ -45,7 +45,7 @@ traverse easily::
     $crawler = new Crawler($html);
 
     foreach ($crawler as $domElement) {
-        print $domElement->nodeName;
+        dump($domElement->nodeName);
     }
 
 Specialized :class:`Symfony\\Component\\DomCrawler\\Link` and

components/event_dispatcher/generic_event.rst

@@ -75,7 +75,7 @@ the event arguments::
     );
     $dispatcher->dispatch('foo', $event);
 
-    echo $event['counter'];
+    dump($event['counter']);
 
     class FooListener
     {
@@ -96,7 +96,7 @@ Filtering data::
     $event = new GenericEvent($subject, array('data' => 'Foo'));
     $dispatcher->dispatch('foo', $event);
 
-    echo $event['data'];
+    dump($event['data']);
 
     class FooListener
     {
@@ -105,3 +105,4 @@ Filtering data::
             $event['data'] = strtolower($event['data']);
         }
     }
+

components/event_dispatcher/introduction.rst

@@ -636,7 +636,7 @@ dispatched, are passed as arguments to the listener::
     {
         public function myEventListener(Event $event, $eventName, EventDispatcherInterface $dispatcher)
         {
-            echo $eventName;
+            // ... do something with the event name
         }
     }
 

components/expression_language/caching.rst

@@ -56,7 +56,7 @@ Both ``evaluate()`` and ``compile()`` can handle ``ParsedExpression`` and
     // the parse() method returns a ParsedExpression
     $expression = $language->parse('1 + 4', array());
 
-    echo $language->evaluate($expression); // prints 5
+    dump($language->evaluate($expression)); // prints 5
 
 .. code-block:: php
 
@@ -68,7 +68,7 @@ Both ``evaluate()`` and ``compile()`` can handle ``ParsedExpression`` and
         serialize($language->parse('1 + 4', array()))
     );
 
-    echo $language->evaluate($expression); // prints 5
+    dump($language->evaluate($expression)); // prints 5
 
 .. _DoctrineBridge: https://github.com/symfony/DoctrineBridge
 .. _`doctrine cache library`: http://docs.doctrine-project.org/projects/doctrine-common/en/latest/reference/caching.html

components/expression_language/extending.rst

@@ -44,7 +44,7 @@ This method has 3 arguments:
         return strtolower($str);
     });
 
-    echo $language->evaluate('lowercase("HELLO")');
+    dump($language->evaluate('lowercase("HELLO")'));
 
 This will print ``hello``. Both the **compiler** and **evaluator** are passed
 an ``arguments`` variable as their first argument, which is equal to the
@@ -126,3 +126,4 @@ or by using the second argument of the constructor::
                 parent::__construct($parser, $providers);
             }
         }
+

components/expression_language/introduction.rst

@@ -68,9 +68,9 @@ The main class of the component is
 
     $language = new ExpressionLanguage();
 
-    echo $language->evaluate('1 + 2'); // displays 3
+    dump($language->evaluate('1 + 2')); // displays 3
 
-    echo $language->compile('1 + 2'); // displays (1 + 2)
+    dump($language->compile('1 + 2')); // displays (1 + 2)
 
 Expression Syntax
 -----------------
@@ -96,12 +96,12 @@ PHP type (including objects)::
     $apple = new Apple();
     $apple->variety = 'Honeycrisp';
 
-    echo $language->evaluate(
+    dump($language->evaluate(
         'fruit.variety',
         array(
             'fruit' => $apple,
         )
-    );
+    ));
 
 This will print "Honeycrisp". For more information, see the :doc:`/components/expression_language/syntax`
 entry, especially :ref:`component-expression-objects` and :ref:`component-expression-arrays`.

components/expression_language/syntax.rst

@@ -42,12 +42,12 @@ to JavaScript::
     $apple = new Apple();
     $apple->variety = 'Honeycrisp';
 
-    echo $language->evaluate(
+    dump($language->evaluate(
         'fruit.variety',
         array(
             'fruit' => $apple,
         )
-    );
+    ));
 
 This will print out ``Honeycrisp``.
 
@@ -72,12 +72,12 @@ JavaScript::
 
     $robot = new Robot();
 
-    echo $language->evaluate(
+    dump($language->evaluate(
         'robot.sayHi(3)',
         array(
             'robot' => $robot,
         )
-    );
+    ));
 
 This will print out ``Hi Hi Hi!``.
 
@@ -93,9 +93,9 @@ constant::
 
     define('DB_USER', 'root');
 
-    echo $language->evaluate(
+    dump($language->evaluate(
         'constant("DB_USER")'
-    );
+    ));
 
 This will print out ``root``.
 
@@ -114,12 +114,12 @@ array keys, similar to JavaScript::
 
     $data = array('life' => 10, 'universe' => 10, 'everything' => 22);
 
-    echo $language->evaluate(
+    dump($language->evaluate(
         'data["life"] + data["universe"] + data["everything"]',
         array(
             'data' => $data,
         )
-    );
+    ));
 
 This will print out ``42``.
 
@@ -140,14 +140,14 @@ Arithmetic Operators
 
 For example::
 
-    echo $language->evaluate(
+    dump($language->evaluate(
         'life + universe + everything',
         array(
             'life' => 10,
             'universe' => 10,
             'everything' => 22,
         )
-    );
+    ));
 
 This will print out ``42``.
 
@@ -230,13 +230,13 @@ String Operators
 
 For example::
 
-    echo $language->evaluate(
+    dump($language->evaluate(
         'firstName~" "~lastName',
         array(
             'firstName' => 'Arthur',
             'lastName' => 'Dent',
         )
-    );
+    ));
 
 This would print out ``Arthur Dent``.
 

components/finder.rst

@@ -28,14 +28,14 @@ directories::
     $finder->files()->in(__DIR__);
 
     foreach ($finder as $file) {
-        // Print the absolute path
-        print $file->getRealpath()."\n";
+        // Dump the absolute path
+        dump($file->getRealpath());
 
-        // Print the relative path to the file, omitting the filename
-        print $file->getRelativePath()."\n";
+        // Dump the relative path to the file, omitting the filename
+        dump($file->getRelativePath());
 
-        // Print the relative path to the file
-        print $file->getRelativePathname()."\n";
+        // Dump the relative path to the file
+        dump($file->getRelativePathname());
     }
 
 The ``$file`` is an instance of :class:`Symfony\\Component\\Finder\\SplFileInfo`
@@ -116,9 +116,7 @@ And it also works with user-defined streams::
     $finder = new Finder();
     $finder->name('photos*')->size('< 100K')->date('since 1 hour ago');
     foreach ($finder->in('s3://bucket-name') as $file) {
-        // ... do something
-
-        print $file->getFilename()."\n";
+        // ... do something with the file
     }
 
 .. note::

components/form/introduction.rst

@@ -394,9 +394,9 @@ is created from the form factory.
             ->add('dueDate', 'date')
             ->getForm();
 
-        echo $twig->render('new.html.twig', array(
+        dump($twig->render('new.html.twig', array(
             'form' => $form->createView(),
-        ));
+        )));
 
     .. code-block:: php-symfony
 

components/http_foundation/introduction.rst

@@ -447,10 +447,10 @@ represented by a PHP callable instead of a string::
 
     $response = new StreamedResponse();
     $response->setCallback(function () {
-        echo 'Hello World';
+        dump('Hello World');
         flush();
         sleep(2);
-        echo 'Hello World';
+        dump('Hello World');
         flush();
     });
     $response->send();

components/intl.rst

@@ -138,7 +138,7 @@ This class currently only works with the `intl extension`_ installed::
     $reader = new BinaryBundleReader();
     $data = $reader->read('/path/to/bundle', 'en');
 
-    echo $data['Data']['entry1'];
+    dump($data['Data']['entry1']);
 
 PhpBundleReader
 ~~~~~~~~~~~~~~~
@@ -152,7 +152,7 @@ object::
     $reader = new PhpBundleReader();
     $data = $reader->read('/path/to/bundle', 'en');
 
-    echo $data['Data']['entry1'];
+    dump($data['Data']['entry1']);
 
 BufferedBundleReader
 ~~~~~~~~~~~~~~~~~~~~
@@ -193,10 +193,10 @@ returned::
     $data = $reader->read('/path/to/bundle', 'en');
 
     // Produces an error if the key "Data" does not exist
-    echo $data['Data']['entry1'];
+    dump($data['Data']['entry1']);
 
     // Returns null if the key "Data" does not exist
-    echo $reader->readEntry('/path/to/bundle', 'en', array('Data', 'entry1'));
+    dump($reader->readEntry('/path/to/bundle', 'en', array('Data', 'entry1')));
 
 Additionally, the
 :method:`Symfony\\Component\\Intl\\ResourceBundle\\Reader\\StructuredBundleReaderInterface::readEntry`
@@ -207,12 +207,12 @@ multi-valued entries (arrays), the values of the more specific and the fallback
 locale will be merged. In order to suppress this behavior, the last parameter
 ``$fallback`` can be set to ``false``::
 
-    echo $reader->readEntry(
+    dump($reader->readEntry(
         '/path/to/bundle',
         'en',
         array('Data', 'entry1'),
         false
-    );
+    ));
 
 Accessing ICU Data
 ------------------