public function getLoginStartUrl($redirecturl) {
		$facebook = $this->getFacebookObject();
		
		$helper = $facebook->getRedirectLoginHelper();

		$permissions = ['email']; // Optional permissions
		$loginUrl = $helper->getLoginUrl($redirecturl, $permissions);

		return $loginUrl;
	}
public function getLoginStartUrl($redirecturl) {
		$facebook = $this->getFacebookObject();
		
		$helper = $facebook->getRedirectLoginHelper();

		$permissions = ['email']; // Optional permissions
		$loginUrl = $helper->getLoginUrl($redirecturl, $permissions);

		return $loginUrl;
	}
Returns facebook login start auth process

@param string $redirecturl URL where to redirect after login complete