Too much data with var_dump in symfony2 doctrine2

问题

I have around 40 entities and many bidirectional relationships. Whenever i use var_dump($user) or any entity my browser gets loaded with too much data of arrays and variables then it just crashed.

i want to whats the problem.

The data is being inserted fine. Can i cause issue in production.

回答1:

Replace var_dump() with the debug method dump() provided by Doctrine Common.

\Doctrine\Common\Util\Debug::dump($user);

It works for single objects and Doctrine collections and should prevent browser displaying issues you are having.

回答2:

well formatted :

echo '<pre>';
\Doctrine\Common\Util\Debug::dump($user, $recurciveLevelToDisplay);
echo '</pre>';

回答3:

Simple and easy example.

var_dump(serialize($Object));

回答4:

Symfony < 2.6

You can use \Doctrine\Common\Util\Debug::dump($variable, $depth); it displays doctrine output without the proxy information.

Symfony > 2.6

If you are using symfony 2.6 or more, I strongly advice you to use dump(). It shows a well formated and colored output, and you can dynamically expend/hide rows.

回答5:

The problem is that in a bidirectional relationship both entities have a link to each other, so while displaying entity1 var_dump will also have to print all properties of entity2, which include entity1 itself giving you a loop.

回答6:

The get_object_vars() improve the visualization too.

echo "<pre>";
\Doctrine\Common\Util\Debug::dump(get_object_vars($user));

回答7:

With Symfony 2.6 you can now just use dump($var) in your controller and {{ dump(var) }} in twig.

Make sure to add this to your AppKernal.php file, in the array('dev', 'test') section.

$bundles[] = new Symfony\Bundle\DebugBundle\DebugBundle();

回答8:

use dump($user) and you can see perfect result in Symfony Profiler! good luck

回答9:

Just use echo serialize($user);

来源：https://stackoverflow.com/questions/11902099/too-much-data-with-var-dump-in-symfony2-doctrine2