fixed notice of the variable references (fixes #1894)
fixed notice of the variable references (fixes #1894)

C-nakajima/OpenPNE3,ShinichiU/OpenPNE3,kashiwasan/symfony-advanced,isaosano/OpenPNE3,openpne/OpenPNE3,ShinichiU/AuthFramework,isaosano/OpenPNE3,ShinichiU/AuthFramework,nishizoe/OpenPNE3,tejima/OP3PKG,openpne/OpenPNE3,tejima/OP3PKG,C-nakajima/OpenPNE3,openpne/OpenPNE3,isaosano/OpenPNE3,C-nakajima/OpenPNE3,nishizoe/OpenPNE3,ShinichiU/AuthFramework,ShinichiU/OpenPNE3,openpne/OpenPNE3,upsilon/travis-test,ShinichiU/OpenPNE3,upsilon/travis-test,ShinichiU/OpenPNE3,C-nakajima/OpenPNE3,nise-nabe/ppcon-sns,isaosano/OpenPNE3,kashiwasan/symfony-advanced,nise-nabe/ppcon-sns