略微加速

PHP官方手册 - 互联网笔记

PHP - Manual: Ds\Deque::shift

2024-05-05

Ds\Deque::shift

(PECL ds >= 1.0.0)

Ds\Deque::shiftRemoves and returns the first value

说明

public Ds\Deque::shift(): mixed

Removes and returns the first value.

参数

此函数没有参数。

返回值

The first value, which was removed.

错误/异常

UnderflowException if empty.

范例

示例 #1 Ds\Deque::shift() example

<?php
$deque 
= new \Ds\Deque(["a""b""c"]);

var_dump($deque->shift());
var_dump($deque->shift());
var_dump($deque->shift());
?>

以上例程的输出类似于:

string(1) "a"
string(1) "b"
string(1) "c"
add a noteadd a note

User Contributed Notes

There are no user contributed notes for this page.

官方地址:https://www.php.net/manual/en/ds-deque.shift.php

北京半月雨文化科技有限公司.版权所有 京ICP备12026184号-3