EnergieProduction /
Chart
| 1 | <?php |
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| 7 | abstract class Builder implements Criteria { |
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| 8 | |||
| 9 | protected $content; |
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| 10 | |||
| 11 | /** |
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| 12 | * [__construct description] |
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| 13 | * @param mixed $content |
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| 14 | */ |
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| 15 | public function __construct($content) |
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| 19 | |||
| 20 | /** |
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| 21 | * [resolveKey description] |
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| 22 | * @return string |
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| 23 | */ |
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| 24 | public function resolveKey() |
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| 32 | |||
| 33 | /** |
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| 34 | * [getContent description] |
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| 35 | * @return mixed |
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| 36 | */ |
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| 37 | public function getContent() |
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| 41 | } |
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| 42 |
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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: