filter_array - return a selective sub-array

array filter_array( array arr, string fun, object ob, mixed extra, ... );

array filter_array( array arr, function f, mixed extra, ...);

filter_array() is really the same as the filter() efun.

See also:
 filter

 Tim Hollebeek  Beek@ZorkMUD, Lima Bean, IdeaExchange, and elsewhere
