SYNOPSIS
        int member(mixed *array, mixed elem)
        int member(mapping m, mixed key)
        int member(string s, int elem)

DESCRIPTION
        For arrays and strings, returns the index of the second arg in
        the first arg, or -1 if none found. For mappings it checks, if
        key is present in mapping m and returns 1 if so, 0 if key is
        not in m.

SEE ALSO
        member_array(E), mappings(LPC)