1 | <?php |
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2 | class Intraface_Controller_ModuleGatekeeper extends k_Component |
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3 | { |
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4 | protected $template; |
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5 | protected $mdb2; |
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6 | |||
7 | function __construct(k_TemplateFactory $template, MDB2_Driver_Common $mdb2) |
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12 | |||
13 | function map($name) |
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27 | |||
28 | function renderHtml() |
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37 | |||
38 | public function getKernel() |
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42 | |||
43 | function getUser() |
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47 | |||
48 | function getModules() |
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55 | } |
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56 |
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: