Question

I’ve been trying to remove the E_NOTICE and E_STRICT error levels to avoid this error:

Runtime Notice: Only variables should be passed by reference

I tried modifying php.ini but didn’t work, error_reporting always is -1. Then I tried setting it dynamically in the current action, and worked fine. Then I also tried the same in the first line in app_dev.php and didn’t work. Which means Symfony2 is setting it dynamically somewhere.

What should I do?

EDIT

For those who are not familiar with the error:

$user = $this->('security.context')->getToken()->getUser();

$first = reset($user->getRoles()); // error

$roles = $user->getRoles();
$first = reset($roles); // works fine

Answer 1

Whilst the notice is not ‘retarded’, this is a reasonable question in other contexts so: this is set in the Kernel instance, instantiated in app_dev.php (or app.php).

The second parameter to the construct is a boolean debug flag, and if true then error_reporting is set to -1 and display_errors to 1, otherwise default and 0 respectively.

$kernel = new AppKernel('dev', false);

symfony documentation

Hope this helps.