Fixed depreciation warning for PHP 7
Fixed depreciation warning for PHP 7

waifung0207/ci_bootstrap_3_demo,facundoruiz/ci_bootstrap_3,waifung0207/ci_bootstrap_3_demo,waifung0207/ci_bootstrap_3,waifung0207/ci_bootstrap_3_demo,facundoruiz/ci_bootstrap_3,waifung0207/ci_bootstrap_3,waifung0207/ci_bootstrap_3_demo,waifung0207/ci_bootstrap_3,facundoruiz/ci_bootstrap_3,waifung0207/ci_bootstrap_3,facundoruiz/ci_bootstrap_3