| 1 | <?php |
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| 34 | trait TMetaMember |
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| 35 | { |
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| 36 | /** |
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| 37 | * Get the meta member of the document. |
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| 38 | * |
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| 39 | * @return StandardObjectInterface |
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| 40 | * |
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| 41 | * @throws Exceptions\RuntimeException if the meta member is present and is not an object or null |
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| 42 | */ |
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| 43 | public function getMeta() : StandardObjectInterface |
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| 53 | |||
| 54 | /** |
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| 55 | * @return bool |
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| 56 | */ |
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| 57 | public function hasMeta() : bool |
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| 61 | } |
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| 62 |
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.