| Conditions | 2 | 
| Paths | 2 | 
| Total Lines | 19 | 
| Code Lines | 13 | 
| Lines | 0 | 
| Ratio | 0 % | 
| Tests | 0 | 
| CRAP Score | 6 | 
| Changes | 1 | ||
| Bugs | 0 | Features | 0 | 
| 1 | <?php  | 
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| 17 | public function request(  | 
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| 18 | $method,  | 
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| 19 | $uri,  | 
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| 20 | array $parameters = array(),  | 
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| 21 | array $files = array(),  | 
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| 22 | array $server = array(),  | 
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| 23 | $content = null,  | 
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| 24 | $changeHistory = true  | 
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| 25 |     ) { | 
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| 26 | $crawler = parent::request($method, $uri, $parameters, $files, $server, $content, $changeHistory);  | 
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| 27 | |||
| 28 |         if ($this->getProfile()) { | 
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| 29 | $this->queryCounter->checkQueryCount(  | 
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| 30 |                 $this->getProfile()->getCollector('db')->getQueryCount() | 
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                         | 
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| 31 | );  | 
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| 32 | }  | 
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| 33 | |||
| 34 | return $crawler;  | 
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| 35 | }  | 
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| 36 | }  | 
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| 37 | 
Let’s take a look at an example:
In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different implementation of User which does not have a getDisplayName() method, the code will break.
Available Fixes
Change the type-hint for the parameter:
Add an additional type-check:
Add the method to the interface: