PHP Ds Deque pop() 函数

Ds\Deque::pop() 函数可以移除并返回最后一个值。

语法

public mixed Ds\Deque::pop( void )

Ds\Deque::pop()函数没有任何参数。

Ds\Deque::pop()函数可以返回移除的最后一个值，并在空时抛出UnderflowException异常。

示例1

<?php 
   deque = new \Ds\Deque([10, 20, 30, 40, 50]);   echo("The elements in deque: \n");   print_r(deque); 

   echo("\n The last element in deque:"); 
   print_r(deque->pop()); 

   echo("\n The elements in deque: \n");   print_r(deque); 
?>

示例2

<?php 
   deque = new \Ds\Deque(["Tutorials", "Point", "India", "Tutorix"]);   echo("The elements in deque: \n");   print_r(deque); 

   echo("\n The last element in deque:"); 
   print_r(deque->pop()); 

   echo("\n The elements in deque: \n");   print_r(deque); 
?>