1 | <?php |
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17 | trait Singleton |
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18 | { |
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19 | /** |
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20 | * @var static |
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21 | */ |
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22 | protected static $_instance; |
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23 | |||
24 | /** |
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25 | * Get the instance. |
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26 | * |
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27 | * @return static |
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28 | */ |
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29 | 3 | final public static function getInstance() |
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37 | |||
38 | /** |
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39 | * Swap the instance to another. |
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40 | * |
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41 | * @param mixed $instance |
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42 | */ |
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43 | 1 | final public static function swap($instance) |
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47 | |||
48 | /** |
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49 | * Make __construct private to avoid new the object. |
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50 | */ |
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51 | 1 | private function __construct() |
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54 | |||
55 | /** |
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56 | * Disable clone. |
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57 | */ |
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58 | private function __clone() |
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61 | } |
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62 |