1 | <?php |
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18 | abstract class AbstractRenderer |
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19 | { |
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20 | /** |
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21 | * @var ConfigInterface config object |
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22 | */ |
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23 | protected $_config; |
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24 | |||
25 | public $normalizeOptions = []; |
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26 | |||
27 | 2 | public function __construct(ConfigInterface $config) |
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31 | |||
32 | 1 | public function getConfig() |
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36 | |||
37 | 2 | public function setHistory($value) |
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42 | |||
43 | 2 | public function getHistory() |
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47 | |||
48 | /** |
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49 | * Renders history to string. |
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50 | * @param History $history |
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51 | * @return string |
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52 | */ |
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53 | abstract public function render(History $history); |
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54 | } |
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55 |
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: