| 1 | <?php |
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| 9 | class Image implements ImageContract |
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| 10 | { |
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| 11 | |||
| 12 | /** |
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| 13 | * @var File |
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| 14 | */ |
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| 15 | private $file; |
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| 16 | |||
| 17 | |||
| 18 | /** |
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| 19 | * Image constructor. |
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| 20 | * |
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| 21 | * @param File $file |
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| 22 | */ |
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| 23 | public function __construct(File $file) |
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| 27 | |||
| 28 | |||
| 29 | /** |
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| 30 | * @inheritdoc |
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| 31 | */ |
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| 32 | public function getFile() |
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| 36 | |||
| 37 | |||
| 38 | /** |
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| 39 | * @inheritdoc |
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| 40 | */ |
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| 41 | public function getUrl(array $options = []) |
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| 45 | } |
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| 46 |
Let’s assume that you have a directory layout like this:
. |-- OtherDir | |-- Bar.php | `-- Foo.php `-- SomeDir `-- Foo.phpand let’s assume the following content of
Bar.php:If both files
OtherDir/Foo.phpandSomeDir/Foo.phpare loaded in the same runtime, you will see a PHP error such as the following:PHP Fatal error: Cannot use SomeDir\Foo as Foo because the name is already in use in OtherDir/Foo.phpHowever, as
OtherDir/Foo.phpdoes not necessarily have to be loaded and the error is only triggered if it is loaded beforeOtherDir/Bar.php, this problem might go unnoticed for a while. In order to prevent this error from surfacing, you must import the namespace with a different alias: