1 | <?php |
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11 | trait HasDisksTrait |
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12 | { |
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13 | /** |
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14 | * The array of resolved filesystem drivers. |
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15 | * |
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16 | * @var FileDisk[] |
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17 | */ |
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18 | protected $disks = []; |
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19 | |||
20 | /** |
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21 | * Get a filesystem instance. |
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22 | * |
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23 | * @param string $name |
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24 | * @return FileDisk |
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25 | */ |
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26 | public function disk($name = null) |
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32 | |||
33 | /** |
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34 | * Get the default driver name. |
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35 | * |
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36 | * @return string |
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37 | */ |
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38 | public function getDefaultDriver() |
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42 | |||
43 | /** |
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44 | * Attempt to get the disk from the local cache. |
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45 | * |
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46 | * @param string $name |
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47 | * @return FileDisk |
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48 | */ |
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49 | protected function get($name) |
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53 | } |
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54 |
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.