1 | <?php |
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4 | trait TerminateTrait |
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5 | { |
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6 | /** |
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7 | * @return string |
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8 | */ |
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9 | 1 | public function join($separator) |
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10 | { |
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11 | 1 | $arr = $this->toArray(); |
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12 | 1 | return implode($separator, $arr); |
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13 | } |
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14 | |||
15 | /** |
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16 | * @return int|float |
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17 | */ |
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18 | 5 | public function sum() |
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22 | |||
23 | /** |
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24 | * @return int|float |
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25 | */ |
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26 | 1 | public function product() |
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30 | |||
31 | /** |
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32 | * @return int |
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33 | */ |
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34 | 1 | public function count() |
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35 | { |
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36 | 1 | return $this->reduce('$_carry + 1', 0); |
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37 | } |
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38 | |||
39 | /** |
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40 | * @param string|callable $fn '$_carry + $_' |
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41 | * @param mixed $initial |
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42 | * @return mixed |
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43 | */ |
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44 | 8 | public function reduce($fn, $initial = null) |
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58 | } |
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59 |
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
Idable
provides a methodequalsId
that 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.