try catch does not catch exception?

Question

I have code like below

try {
  $user = $query->getSingleResult();
} catch (Doctrine\ORM\NoResultException $e) {
  return null;
} catch (Exception $e) {
  return null;
}

getSingleResult() will throw NoResultException if no rows are found. and it seems I am still getting the exception ... the catch does not seem to work. why is that?

Jani Hartikainen · Accepted Answer · 2010-12-19 14:25:20Z

34

If your code is namespaced, try using:

catch (\Doctrine\ORM\NoResultException $e)

Note the backslash in front of the Doctrine namespace.

The reason you need to do this is because PHP's namespaces are relative, instead of absolute.

If your code is namespaced to My\Namespace, and you try to catch Doctrine\ORM\NoResultException, in reality it tries to catch My\Namespace\Doctrine\ORM\NoResultException.

By prefixing the namespace with a \ you make it absolute (similar to unix pathnames)

answered Dec 19, 2010 at 14:25

Jani Hartikainen

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3 Comments

lotsoffreetime Over a year ago

This is most likely because the user is using Doctrine 2 which is namespaced.

Jani Hartikainen Over a year ago

Using Doctrine 2 does not force you to namespace your own code though. In a case where you haven't specified a namespace for your code, the namespace is always assumed to be at root, in which case you wouldn't need the initial \

Yann Sagon Over a year ago

You can as well just do a catch of NoResultException and add a use Doctrine\ORM\NoResultException; in your file header.

Gayan Hewa · Accepted Answer · 2014-11-28 05:31:24Z

3

Its also possible to add a

 use Exception;

On the top of the class and it will resolve the Exception class name used in the try/catch block.

answered Nov 28, 2014 at 5:31

Gayan Hewa

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