| 1 | <?php |
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| 8 | trait ButtonHelpers |
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| 9 | { |
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| 10 | /** |
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| 11 | * Add a web button to the message. |
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| 12 | * |
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| 13 | * @param OneSignalWebButton $button |
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| 14 | * |
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| 15 | * @return $this |
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| 16 | */ |
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| 17 | public function setWebButton(OneSignalWebButton $button) |
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| 21 | |||
| 22 | /** |
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| 23 | * Adds more than one web button to the message. |
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| 24 | * |
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| 25 | * @param array[OnSignalWebButton] $buttons |
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| 26 | * |
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| 27 | * @return $this |
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| 28 | */ |
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| 29 | public function setWebButtons(array $buttons) |
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| 37 | |||
| 38 | /** |
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| 39 | * Add a native button to the message. |
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| 40 | * |
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| 41 | * @param OneSignalButton $button |
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| 42 | * |
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| 43 | * @return $this |
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| 44 | */ |
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| 45 | public function setButton(OneSignalButton $button) |
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| 49 | |||
| 50 | /** |
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| 51 | * Adds more than one native button to the message. |
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| 52 | * |
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| 53 | * @param array $buttons |
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| 54 | * |
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| 55 | * @return $this |
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| 56 | */ |
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| 57 | public function setButtons(array $buttons) |
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| 65 | } |
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| 66 |
This check looks for methods that are used by a trait but not required by it.
To illustrate, let’s look at the following code example
The trait
Idableprovides a methodequalsIdthat in turn relies on the methodgetId(). If this method does not exist on a class mixing in this trait, the method will fail.Adding the
getId()as an abstract method to the trait will make sure it is available.