symfony - Some difficulties to understand a namesapace and his use -

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i haves difficulties understand namespace's use :

namespace utilisateurs\utilisateursbundle\entity;  use fos\userbundle\entity\user baseuser;

i have found namespace called fos (in /applications/mamp/htdocs/ecommerce/vendor/friendsofsymfony/user-bundle) :

namespace fos\userbundle;

but don't understand \entity\user.

this code of entity :

<?php // src/acme/userbundle/entity/user.php  namespace utilisateurs\utilisateursbundle\entity;  use fos\userbundle\entity\user baseuser; use doctrine\orm\mapping orm;  /**  * @orm\entity  * @orm\table(name="utilisateurs")  */ class utilisateurs extends baseuser {     /**      * @orm\id      * @orm\column(type="integer")      * @orm\generatedvalue(strategy="auto")      */     protected $id;      public function __construct()     {         parent::__construct();         // own logic     } }

when understand namespace, able fix problem :

fatal error: class 'fos\userbundle\entity\user' not found in /applications/mamp/htdocs/ecommerce/src/utilisateurs/utilisateursbundle/entity/utilisateurs.php on line 14 [2015-08-16 17:19:57] php.critical: fatal error: class 'fos\userbundle\entity\user' not found {"type":1,"file":"/applications/mamp/htdocs/ecommerce/src/utilisateurs/utilisateursbundle/entity/utilisateurs.php","line":14,"level":-1,"stack":[]}

fatal error: class 'fos\userbundle\propel\om\baseuser' not found in /applications/mamp/htdocs/ecommerce/vendor/friendsofsymfony/user-bundle/propel/user.php on line 18

i recommend watch php namespaces in 120 seconds screencast.


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