symfony/symfony — pull request #10946 by webmozart (2014-05-20 09:08:03+00:00)
Title: [2.5][PropertyAccess] Fixed getValue() when accessing non-existing indices of ArrayAccess implementations

| Q | A
| ------------- | ---
| Bug fix? | yes
| New feature? | no
| BC breaks? | no
| Deprecations? | no
| Tests pass? | yes
| Fixed tickets | -
| License | MIT
| Doc PR | -

Previously, when the following code was executed:

```php
$object = new ImplOfArrayAccess();

$propertyAccessor->setValue($object, '[index]', 'Value');
```

and that index did not exist, a fatal error would be generated because `array_keys()` was executed on `$object`. This error is fixed now.