| 1 | <?php |
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| 5 | trait EachTrait |
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| 6 | { |
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| 7 | /** |
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| 8 | * Applies a callback to each element. |
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| 9 | * (internally uses \CallbackFilterIterator). |
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| 10 | * |
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| 11 | * The passed callback will be invoked with the following argument: |
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| 12 | * |
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| 13 | * - $value (iterator's current()) |
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| 14 | * |
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| 15 | * If the second parameter is true the following arguments will be added |
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| 16 | * to the call: |
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| 17 | * |
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| 18 | * - $key (iterator's key()) |
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| 19 | * - $iterator (the iterator itself) |
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| 20 | * |
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| 21 | * @param callable $______callback a PHP callable (closure, string or array) |
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| 22 | * @param bool $______allArgs if true key and iterator will be passed to the callback |
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| 23 | * |
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| 24 | * @return \Pipes\Pipe |
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| 25 | */ |
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| 26 | public function each(callable $______callback, $______allArgs = false) |
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| 37 | } |
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| 38 |
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.