| Conditions | 4 | 
| Paths | 2 | 
| Total Lines | 12 | 
| Code Lines | 7 | 
| Lines | 0 | 
| Ratio | 0 % | 
| Changes | 1 | ||
| Bugs | 0 | Features | 1 | 
| 1 | <?php | ||
| 32 | public function getMailService() | ||
| 33 |     { | ||
| 34 | if ( | ||
| 35 | $this instanceof ServiceLocatorAwareInterface | ||
| 36 | && ! isset($this->mailService) | ||
|  | |||
| 37 |             && $this->getServiceLocator()->has('AcMailer\Service\MailService') | ||
| 38 |         ) { | ||
| 39 |             $this->mailService = $this->getServiceLocator()->get('AcMailer\Service\MailService'); | ||
| 40 | } | ||
| 41 | |||
| 42 | return $this->mailService; | ||
| 43 | } | ||
| 44 | } | ||
| 45 | 
If you access a property on an interface, you most likely code against a concrete implementation of the interface.
Available Fixes
Adding an additional type check:
Changing the type hint: