HH\ImmVector::slice

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

Description

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

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

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

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

Parameters

  • int $start - The starting key of the current ImmVector to begin the returned ImmVector.
  • int $len - The length of the returned ImmVector.

Return Values

Examples

See Vector::slice for usage examples.