Agape love is principal love. Its not based on emotions. When you see a guy in a tipped over car and you go pull him out thats agape love. You do not know anything about him other than he is a human being and needs help.
Philea love is friendly love. This is the love you would have for friends or something you really like (sports, cars, hobbies).
Eros love is the romantic love and the least logical. This love makes you go "goo-goo" over someone and you loose all reason and objectivity. This is the love commonly demonstrated between the opposite sexes though in some cases a person can develop this eros love for a thing.
In English we only have one word for "love" but in Hebrew, Greek, Arabic, etc they make a distinction between the "loves" as they each imply different things.