php - Authentication, with html and Javascript only -

i have done browser developing hybrid app. need authentication, can use html , javascript, since hybrid app not support php code. how do such when app starts checks, if user logged on (either via sending status check request server, or suggest other way possible, if php code possible use check session variables , redirect based on that). if user logged on send inside app or else present login form. cannot use facebook, google login etc in case.

thanks.

php serverside, not have used "for browser" except on web server. use hybrid app in same way - on web server, , not inside hybrid app. in hybrid app, have ajax call, example, contacting server authentication , persistence. not need php, need serverside executable.

you need server because makes no sense ask if user logged in unless there somewhere can logged into