PHP Ds Deque set()用法及代碼示例

Ds\Deque::set() 函數可以更新給定索引處的值。

用法

public void Ds\Deque::set( int $index , mixed $value )

Ds\Deque::set() 函數不返回任何值。如果索引無效，此函數可能會拋出 OutOfRangeException。

例子1

<?php 
   $deque = new \Ds\Deque([1, 2, 3, 4, 5]); 
   echo("The elements in deque:\n"); 
   print_r($deque); 
   
   $deque->set(4, 10); 
   echo("The deque after setting value at index 2:\n"); 
   print_r($deque); 
?>

例子2

<?php 
   $deque = new \Ds\Deque(["Tutorials", "Point", "India", "Tutorix"]); 
   echo("The elements of deque:\n"); 
   print_r($deque); 
   
   $deque->set(2, "tutorialspoint"); 
   echo("The deque after setting value at index 2:\n"); 
   print_r($deque); 
?>