How to login with php and session in ionic?

Make Token face, I've tried with session, cookies, but token is the most recommended, keeping the status logged in the app, if that's what tabm you want;

Use this link with support: Autonic IONIC / TOKEN / AngularJS

As @Vagner said token is the most recommended. But if you want an example with session maybe this might help:

//Atribui o objeto usuário a referencia usuarioLogado no sessionStorage
sessionStorage.setItem('usuarioLogado', usuario);

Then if you want to recover this user you can do:

/**Pega o objeto armazenado no sessionStorage, 
observe que a referencia é a mesma('usuarioLogado')*/
$scope.usuarioLogado = sessionStorage.getItem('usuarioLogado');