pht\Vector::updateAt

(PECL pht >= 0.0.1)

pht\Vector::updateAt — Updates a value in the vector

说明

public pht\Vector::updateAt ( mixed $value , int $offset ) : void

This method updates a value at the specified offset in the vector (in linear time). The vector will automatically be resized if it is not large enough.

Since the pht\Vector class supports array access, updating values can also be performed using the array subset notation ([]).

参数

value: The value to be inserted into the vector. This value will be serialised (since it may be passed around between threads).
offset: The offset at which the value will be updated at. This offset must be within the 0..(N-1) range (inclusive), where N is the size of the vector. Attempting to update at offsets outside of this range will result in an Error exception.

返回值

No return value.

范例

Example #1 Updating a value in a vector


<?php

use pht\Vector;

$vector = new Vector();

$vector[] = 1;
$vector[] = 2;

$vector->updateAt(3, 0);
$vector[1] = 4;

var_dump($vector);

以上例程会输出：

object(pht\Vector)#1 (2) {
  [0]=>
  int(3)
  [1]=>
  int(4)
}

add a note

User Contributed Notes

There are no user contributed notes for this page.

官方地址：https://www.php.net/manual/en/pht-vector.updateAt.php

有任何技术问题请点击这里网站运营推广招聘

IT PHP 编程语言 Linux 开发编程科技 Elasticsearch HTML/CSS/XML 网络数据库面试 JAVA NoSQL C/C++ Golang Git 算法操作系统正则表达式 Redis 互联网 MySql JavaScript 运维软件国际架构设计 Mac OS TCP/IP Excel Vim Windows Socket Oracle VR MongoDB Python 运营 MemCache 商业硬件电子娱乐设计 nginx 摄影游戏 WordPress HTTP 团建数码电器

php7 安装fileinfo扩展 preg_split — 通过一个正则表达式分隔字符串 php位值,解决 PHP 中 usort 在值相同时改变原始位置的问题 [PHP] inet_pton/inet_ntop IP地址转换函数 PHP 8.1 [鸟哥]PHP_INT_MIN 和 -9223372036854775808 ADORecordSet对象 adodb手册 opcache预加载 Composer的Packagist资源 mysql面试题 array_multisort() 多字段排序 PHP json解析（json_decode）页面工具 php中几种注释规范 PHP5 扩展SOAP 调用 webservice PHP获取指定函数定义在哪个文件中及行号 PHPMailer设置utf8 PHPMailer字符集CharSet php扩展开发利用PHP SOAP实现WEB SERVICE Packagist / Composer 中国全量镜像

略微加速

PHP官方手册 - 互联网笔记

pht\Vector::updateAt

说明

参数

返回值

范例

User Contributed Notes