bytic /
view
| 1 | <?php |
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| 2 | |||
| 3 | declare(strict_types=1); |
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| 4 | |||
| 5 | namespace Nip\View; |
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| 6 | |||
| 7 | use Nip\View; |
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| 8 | |||
| 9 | class XML extends View |
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| 10 | { |
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| 11 | public function load($view = false, $variables = [], $return = false) |
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| 12 | { |
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| 13 | header('Content-type: text/xml'); |
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| 14 | |||
| 15 | return parent::load($view, $variables, $return); |
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| 16 | } |
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| 17 | |||
| 18 | /** |
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| 19 | * Singleton. |
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| 20 | * |
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| 21 | * @return self |
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| 22 | */ |
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| 23 | public static function instance() |
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| 24 | { |
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| 25 | static $instance; |
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| 26 | if (!($instance instanceof self)) { |
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| 27 | $instance = new self(); |
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| 28 | } |
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| 29 | |||
| 30 | return $instance; |
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| 31 | } |
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| 32 | } |
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| 33 |
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: