Pops a node from the end of the doubly linked list

# SplDoublyLinkedList::pop

(PHP 5 >= 5.3.0, PHP 7, PHP 8)

SplDoublyLinkedList::pop — Pops a node from the end of the doubly linked list

### 说明

public function SplDoublyLinkedList::pop(): mixed

### 参数

此函数没有参数。

### 返回值

The value of the popped node.

### 错误／异常

Throws RuntimeException when the data-structure is empty.

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