hi sir in all your android video tutorials, there is nowhere i have seen you talking of connecting users to php pages... This is challenging me.... I have also have problem when it comes to differenting the following stuffs....

Toast.makeText(getApplicationContext, "string here",Toast.LENGTH_SHORT);
Toast.makeText(loginActivity.this, "string here",Toast.LENGTH_SHORT);
Toast.makeText(this, "string here",Toast.LENGTH_SHORT);