Ds\Deque::slice

(PECL ds >= 1.0.0)

Ds\Deque::slice — Returns a sub-deque of a given range

Descrizione

public Ds\Deque::slice(int $index, int $length = ?): Ds\Deque

Creates a sub-deque of a given range.

Elenco dei parametri

index

The index at which the sub-deque starts.

If positive, the deque will start at that index in the deque. If negative, the deque will start that far from the end.

length

If a length is given and is positive, the resulting deque will have up to that many values in it. If the length results in an overflow, only values up to the end of the deque will be included. If a length is given and is negative, the deque will stop that many values from the end. If a length is not provided, the resulting deque will contain all values between the index and the end of the deque.

Valori restituiti

A sub-deque of the given range.

Esempi

Example #1 Ds\Deque::slice() example

<?php
$deque = new \Ds\Deque(["a", "b", "c", "d", "e"]);

// Slice from 2 onwards
print_r($deque->slice(2));

// Slice from 1, for a length of 3
print_r($deque->slice(1, 3));

// Slice from 1 onwards
print_r($deque->slice(1));

// Slice from 2 from the end onwards
print_r($deque->slice(-2));

// Slice from 1 to 1 from the end
print_r($deque->slice(1, -1));
?>

Il precedente esempio visualizzerà qualcosa simile a:

Ds\Deque Object
(
    [0] => c
    [1] => d
    [2] => e
)
Ds\Deque Object
(
    [0] => b
    [1] => c
    [2] => d
)
Ds\Deque Object
(
    [0] => b
    [1] => c
    [2] => d
    [3] => e
)
Ds\Deque Object
(
    [0] => d
    [1] => e
)
Ds\Deque Object
(
    [0] => b
    [1] => c
    [2] => d
)

Improve This Page

Learn How To Improve This Page • Submit a Pull Request • Report a Bug

＋add a note

User Contributed Notes

There are no user contributed notes for this page.