(PECL ds >= 1.0.0)
Ds\Vector::rotate — Rotates the vector by a given number of rotations
public Ds\Vector::rotate ( int $rotations ) : void
Rotates the vector by a given number of rotations, which is equivalent to successively calling $vector->push($vector->shift())
if the number of rotations is positive, or $vector->unshift($vector->pop())
if negative.
rotations
The number of times the vector should be rotated.
No value is returned.. The vector of the current instance will be rotated.
Example #1 Ds\Vector::rotate() example
<?php $vector = new \Ds\Vector(["a", "b", "c", "d"]); $vector->rotate(1); // "a" is shifted, then pushed. print_r($vector); $vector->rotate(2); // "b" and "c" are both shifted, the pushed. print_r($vector); ?>
The above example will output something similar to:
( [0] => b [1] => c [2] => d [3] => a ) Ds\Vector Object ( [0] => d [1] => a [2] => b [3] => c )
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https://www.php.net/manual/en/ds-vector.rotate.php