Zend\Mvc\Controller\AbstractRestfulController::getIdentifier PHP Method

getIdentifier() protected method

Attempts to see if an identifier was passed in either the URI or the query string, returning it if found. Otherwise, returns a boolean false.
protected getIdentifier ( Zend\Router\RouteMatch $routeMatch, Zend\Stdlib\RequestInterface $request ) : false | mixed
$routeMatch Zend\Router\RouteMatch
$request Zend\Stdlib\RequestInterface
return false | mixed
    protected function getIdentifier($routeMatch, $request)
    {
        $identifier = $this->getIdentifierName();
        $id = $routeMatch->getParam($identifier, false);
        if ($id !== false) {
            return $id;
        }
        $id = $request->getQuery()->get($identifier, false);
        if ($id !== false) {
            return $id;
        }
        return false;
    }