| 1 | <?php  | 
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| 9 | class NullUserProvider implements UserProvider  | 
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| 10 | { | 
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| 11 | public function __construct()  | 
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| 14 | |||
| 15 | public function retrieveById($identifier)  | 
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| 21 | |||
| 22 | public function retrieveByToken($identifier, $token)  | 
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| 25 | |||
| 26 | public function updateRememberToken(Authenticatable $user, $token)  | 
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| 29 | |||
| 30 | public function retrieveByCredentials(array $credentials)  | 
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| 33 | |||
| 34 | public function validateCredentials(Authenticatable $user, array $credentials)  | 
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| 38 | }  | 
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| 39 | 
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: