1 | <?php |
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2 | |||
3 | namespace Http\Message\RequestMatcher; |
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4 | |||
5 | use Http\Message\RequestMatcher; |
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6 | use Psr\Http\Message\RequestInterface; |
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7 | |||
8 | /** |
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9 | * Match a request with a callback. |
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10 | * |
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11 | * @author Márk Sági-Kazár <[email protected]> |
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12 | */ |
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13 | final class CallbackRequestMatcher implements RequestMatcher |
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14 | { |
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15 | /** |
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16 | * @var callable |
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17 | */ |
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18 | private $callback; |
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19 | |||
20 | public function __construct(callable $callback) |
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21 | { |
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22 | $this->callback = $callback; |
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23 | 9 | } |
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24 | |||
25 | 9 | /** |
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26 | 9 | * {@inheritdoc} |
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27 | */ |
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28 | public function matches(RequestInterface $request) |
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29 | { |
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30 | return (bool) call_user_func($this->callback, $request); |
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31 | 4 | } |
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32 | } |
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33 |
Let?s assume that you have a directory layout like this:
and let?s assume the following content of
Bar.php
:If both files
OtherDir/Foo.php
andSomeDir/Foo.php
are 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.php
However, as
OtherDir/Foo.php
does 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: