The method Update modifies the parameters of the existing group
specified by the ID. Returns the ID of the modified group.
Parameters
Parameter
Description
ID
The ID of the group whose parameters are to be modified.
arFields
An array of the format Array(field1=>value1[, field2=>value2 [, ..]]),
where:
field - field name;
value - field value.
The fields are listed in the List
of group fields. The "LANG" special field may be set to an
array of arrays containing the fields with language parameters of a
group. These arrays have the similar structure.
Return Values
Returns the ID of the modified group on success, or false otherwise.