ConstSet::slice

Returns a subset of the current ConstSet starting from a given key up to, but not including, the element at the provided length from the starting key

public function slice(
  int $start,
  int $len,
): ConstSet<Tv>;

$start is 0-based. $len is 1-based. So slice(0,2) would return the elements at key 0 and 1.

The returned ConstSet will always be a proper subset of the current ConstSet.

Parameters

• int $start - The starting value in the current ConstSet for the returned ConstSet.
• int $len - The length of the returned ConstSet.

Returns

• ConstSet<Tv> - A ConstSet that is a proper subset of the current ConstSet starting at $start up to but not including the element $start + $len.