map

       map()  -  modify an mapping, array, or string via applica-
       tion of a function

SYNOPSIS

       mapping map( mapping | mixed* | string x, string fun, object ob,
                    mixed extra, ... );
       mapping map( mapping | mixed* | string x, function f, mixed extra, ... );

DESCRIPTION

       If the first argument is a mapping, map() behaves  exactly
       like  map_mapping().   If  it  is  an array, map() behaves
       exactly like map_array().  If it's argument is  a  string,
       map()  passes  each character (as an int) to the function,
       and replaces the character with the return  value  if  the
       return value is a non-zero integer.

SEE ALSO

       filter_array(3),        sort_array(3),       map_array(3),
       map_mapping(3)