Phobia is same meaning of fear..
fear of something or someplace or maybe someone.
Maybe phobia make us how to protect our self from others.
this the list phobia that i know
>Achluophobia-fear of darkness..
>Acrophobia-fear of height
>Arsonphobia-fear of fire
>Catoptrophobia-fear of mirror
Phobia is something we should handle and we have to face our fear with other way or we should plan the strategies for it.