(PECL ds >= 1.0.0)
Ds\Stack::pop — Removes and returns the value at the top of the stack
此函数没有参数。
The removed value which was at the top of the stack.
UnderflowException if empty.
示例 #1 Ds\Stack::pop() example
<?php
$stack = new \Ds\Stack();
$stack->push("a");
$stack->push("b");
$stack->push("c");
var_dump($stack->pop());
var_dump($stack->pop());
var_dump($stack->pop());
?>以上示例的输出类似于：
string(1) "c" string(1) "b" string(1) "a"