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PHP Ds\Deque rotate()用法及代碼示例

Ds \ Deque::rotate()函數是PHP中的一個內置函數,用於將Deque的元素旋轉給定的旋轉數。

用法:

public Ds\Deque::rotate( $rotations ):void

參數:該函數接受單個參數$rotations,該參數保存要旋轉Deque中元素的旋轉數。


返回值:該函數不返回任何值。

以下示例程序旨在說明PHP中的Ds \ Deque::rotate()函數:

程序1:

<?php 
  
// Declare a deque 
$deck = new \Ds\Deque([1, 2, 3, 4, 5, 6]); 
  
echo("Elements of Deque\n"); 
  
// Display the Deque elements 
print_r($deck); 
  
// Rotating the deque by 2 positions 
$deck->rotate(2); 
   
echo("Rotated Deque\n"); 
  
// Display the Deque elements 
print_r($deck); 
  
?>
輸出:
Elements of Deque
Ds\Deque Object
(
    [0] => 1
    [1] => 2
    [2] => 3
    [3] => 4
    [4] => 5
    [5] => 6
)
Rotated Deque
Ds\Deque Object
(
    [0] => 3
    [1] => 4
    [2] => 5
    [3] => 6
    [4] => 1
    [5] => 2
)

程序2:

<?php 
  
// Declare a deque 
$deck = new \Ds\Deque(["geeks", "for", "geeks", "practice"]); 
  
echo("Elements of Deque\n"); 
  
// Display the Deque elements 
print_r($deck); 
  
// Rotating the deque by 2 positions 
$deck->rotate(2); 
   
echo("Rotated Deque\n"); 
  
// Display the Deque elements 
print_r($deck); 
  
?>
輸出:
Elements of Deque
Ds\Deque Object
(
    [0] => geeks
    [1] => for
    [2] => geeks
    [3] => practice
)
Rotated Deque
Ds\Deque Object
(
    [0] => geeks
    [1] => practice
    [2] => geeks
    [3] => for
)

參考: http://php.net/manual/en/ds-deque.rotate.php



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注:本文由純淨天空篩選整理自barykrg大神的英文原創作品 PHP | Ds\Deque rotate() Function。非經特殊聲明,原始代碼版權歸原作者所有,本譯文未經允許或授權,請勿轉載或複製。