| 1 | <?php |
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| 8 | trait InteractsWithConnection |
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| 9 | { |
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| 10 | /** |
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| 11 | * The connection credentials. |
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| 12 | * |
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| 13 | * @var \NotificationChannels\Apn\ApnCredentials |
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| 14 | */ |
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| 15 | protected $credentials; |
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| 16 | |||
| 17 | /** |
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| 18 | * Open the connection to the feedback service. |
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| 19 | * |
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| 20 | * @param \NotificationChannels\Apn\ApnCredentials $credentials |
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| 21 | * |
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| 22 | * @return void |
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| 23 | * @throws \NotificationChannels\Apn\Exception\ConnectionFailed |
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| 24 | */ |
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| 25 | 3 | protected function openConnection(ApnCredentials $credentials = null) |
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| 26 | { |
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| 27 | try { |
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| 28 | 3 | $credentials = $credentials ?: $this->credentials; |
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| 29 | |||
| 30 | 3 | $this->client->open($credentials->environment, $credentials->certificate, $credentials->passPhrase); |
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| 31 | } catch (Exception $exception) { |
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| 32 | throw ConnectionFailed::create($exception); |
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| 33 | } |
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| 34 | 3 | } |
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| 35 | |||
| 36 | /** |
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| 37 | * Close the connection. |
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| 38 | * |
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| 39 | * @return void |
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| 40 | */ |
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| 41 | 3 | protected function closeConnection() |
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| 45 | } |
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| 46 |
In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: