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Ds\Sequence::rotate

(PECL ds >= 1.0.0)

Ds\Sequence::rotateRotates the sequence by a given number of rotations

Description

abstract public Ds\Sequence::rotate ( int $rotations ) : void

Rotates the sequence by a given number of rotations, which is equivalent to successively calling $sequence->push($sequence->shift()) if the number of rotations is positive, or $sequence->unshift($sequence->pop()) if negative.

Liste de paramètres

rotations

The number of times the sequence should be rotated.

Valeurs de retour

Aucune valeur n'est retournée.. The sequence of the current instance will be rotated.

Exemples

Exemple #1 Ds\Sequence::rotate() example

<?php
$sequence 
= new \Ds\Vector(["a""b""c""d"]);

$sequence->rotate(1);  // "a" is shifted, then pushed.
print_r($sequence);

$sequence->rotate(2);  // "b" and "c" are both shifted, the pushed.
print_r($sequence);
?>

L'exemple ci-dessus va afficher quelque chose de similaire à :

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