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<?php |
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namespace Bone\Mvc; |
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use Bone\Filter; |
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use Exception; |
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use ReflectionClass; |
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use Psr\Http\Message\ServerRequestInterface; |
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use Psr\Http\Message\ResponseInterface; |
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use Zend\Diactoros\Response\SapiEmitter; |
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/** |
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* Class Dispatcher |
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* @package Bone\Mvc |
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*/ |
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class Dispatcher |
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{ |
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// Garrrr! An arrrray! |
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private $config = array(); |
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/** @var ServerRequestInterface $request */ |
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private $request; |
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/** @var Controller */ |
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private $controller; |
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/** @var ResponseInterface $response */ |
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private $response; |
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public function __construct(ServerRequestInterface $request, ResponseInterface $response) |
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{ |
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$this->request = $request; |
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$this->response = $response; |
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$router = new Router($request); |
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$router->parseRoute(); |
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// what controller be we talkin' about? |
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$filtered = Filter::filterString($router->getController(), 'DashToCamelCase'); |
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$this->config['controller_name'] = '\App\Controller\\' . ucwords($filtered) . 'Controller'; |
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// whit be yer action ? |
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$filtered = Filter::filterString($router->getAction(), 'DashToCamelCase'); |
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$this->config['action_name'] = $filtered . 'Action'; |
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$this->config['controller'] = $router->getController(); |
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$this->config['action'] = $router->getAction(); |
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} |
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/** |
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* Gaaarrr! Check the Navigator be readin' the map! |
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* @return null|void |
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*/ |
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public function checkNavigator() |
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{ |
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// can we find th' darned controller? |
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if (!$this->checkControllerExists()) { |
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$this->setNotFound(); |
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return; |
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} |
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// gaaarr! there be the controller! |
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$this->controller = new $this->config['controller_name']($this->request); |
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// where's the bloody action? |
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if (!$this->checkActionExists()) { |
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$this->setNotFound(); |
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} |
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return null; |
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} |
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/** |
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* @return bool |
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*/ |
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private function checkControllerExists() |
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{ |
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return class_exists($this->config['controller_name']); |
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} |
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/** |
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* @return bool |
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*/ |
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private function checkActionExists() |
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{ |
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return method_exists($this->controller, $this->config['action_name']); |
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} |
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/** |
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* @return string |
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* @throws \Exception |
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*/ |
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private function getResponseBody() |
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{ |
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/** @var \stdClass $view_vars */ |
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$view_vars = $this->controller->view; |
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$response_body = $this->controller->getBody(); |
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if ($this->controller->hasViewEnabled()) { |
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$view = $this->config['controller'] . '/' . $this->config['action']; |
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try { |
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$response_body = $this->controller->getViewEngine()->render($view, (array) $view_vars); |
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} catch (Exception $e) { |
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throw $e; |
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} |
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} |
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if ($this->controller->hasLayoutEnabled()) { |
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$response_body = $this->templateCheck($this->controller, $response_body); |
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} |
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return $response_body; |
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} |
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/** |
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* |
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*/ |
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public function fireCannons() |
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{ |
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try { |
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// Where be the navigator? Be we on course? |
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$this->checkNavigator(); |
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// boom! direct hit Cap'n! Be gettin' the booty! |
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$this->plunderEnemyShip(); |
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// show th' cap'n th' booty |
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$booty = $this->getResponseBody(); |
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} catch (Exception $e) { |
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$booty = $this->sinkingShip($e); |
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} |
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$this->response->getBody()->write($booty); |
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// report back to th' cap'n |
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$this->setHeaders(); |
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$emitter = new SapiEmitter(); |
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ob_start(); |
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$emitter->emit($this->response); |
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$content = ob_get_contents(); |
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ob_end_clean(); |
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return $content; |
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} |
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private function setHeaders() |
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{ |
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foreach ($this->controller->getHeaders() as $key => $value) { |
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$this->response = $this->response->withHeader($key, $value); |
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} |
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} |
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private function plunderEnemyShip() |
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{ |
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// run th' controller action |
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$action = $this->config['action_name']; |
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$this->controller->init(); |
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$vars = $this->controller->$action(); |
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if (is_array($vars)) { |
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$viewVars = (array) $this->controller->view; |
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$view = (object) array_merge($vars, $viewVars); |
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$this->controller->view =$view; |
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} |
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$this->controller->postDispatch(); |
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} |
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public function sinkingShip($e) |
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{ |
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$controllerName = class_exists('\App\Controller\ErrorController') ? 'App\Controller\ErrorController' : 'Bone\Mvc\Controller'; |
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$this->controller = new $controllerName($this->request); |
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$this->controller->setParam('error', $e); |
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$reflection = new ReflectionClass(get_class($this->controller)); |
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$method = $reflection->getMethod('errorAction'); |
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$method->setAccessible(true); |
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$method->invokeArgs($this->controller, []); |
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$this->controller->error = $e; |
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$this->config['controller'] = 'error'; |
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$this->config['action'] = 'error'; |
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return $this->getResponseBody(); |
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} |
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/** |
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* @param Controller $controller |
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* @param string $content |
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* @return string |
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*/ |
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private function templateCheck($controller, $content) |
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{ |
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$response_body = ''; |
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//check we be usin' th' templates in th' config |
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$templates = Registry::ahoy()->get('templates'); |
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$template = $this->getTemplateName($templates); |
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if ($template !== null) { |
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$response_body = $controller->getViewEngine()->render('layouts/' . $template, array('content' => $content)); |
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} |
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return $response_body; |
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} |
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/** |
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* @param mixed $templates |
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* @return string|null |
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*/ |
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private function getTemplateName($templates) |
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{ |
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if (is_null($templates)) { |
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return null; |
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} elseif (is_array($templates)) { |
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return (string) $templates[0]; |
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} |
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return (string) $templates; |
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} |
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/** |
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* Sets controller to error and action to not found |
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* @return void |
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*/ |
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private function setNotFound() |
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{ |
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$this->config['controller_name'] = class_exists('\App\Controller\ErrorController') ? '\App\Controller\ErrorController' : '\Bone\Mvc\Controller'; |
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$this->config['action_name'] = 'notFoundAction'; |
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$this->config['controller'] = 'error'; |
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$this->config['action'] = 'not-found'; |
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$this->controller = new $this->config['controller_name']($this->request); |
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} |
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} |
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delboy1978uk /
bone
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: