Hi,,,, Is php the type of language you use for login pages such as a blog so members can join? thanks
No ,Your concept is wrong.Infact login system is a system that can be made in php,asp,jsp or any other language. Php is a server side programming language with which you can make login system,registeration system, or you can perform any task by php same like you perform task with any other server side programming languages. Hope its now clear to you.
^^ what he said. But to answer your question directly - yes I use php for tasks you mentioned. It's not the only language you can do it in, but it's my preffered one.
Yes, it can be done in PHP. No, PHP is not the only language it can be done in. It's more a question of preference, imo.
You can try using PHP frameworks such as symfony, cakephp and codeigniter to build your login pages using PHP. These frameworks come with standard helpers/components that would allow you to build your back-end system very quickly.