基于php实现随机合并数组并排序(原排序)_php实例
最近做了一个项目,其中有这样一个需求要实现,原有帖子列表A,现在需要在A中推广新业务B,那么需要在A列表中1:1混合B中的数据,随机混合,但是需要保持A和B两列原来的数据排序,具体详情请看下文。
原理
获知总共元素数量N;
for循环N次,取随机数;
根据随机数依次从头获取A或B的值,推入新数组中;
代码:
//随机合并两个数组元素,保持原有数据的排序不变(即各个数组的元素在合并后的数组中排序与自身原来一致) function shuffleMergeArray() { $mergeArray = array(); $sum = count($array1) + count($array2); for ($k = $sum; $k > 0; $k--) { $number = mt_rand(1, 2); if ($number == 1) { $mergeArray[] = $array2 ? array_shift($array2) : array_shift($array1); } else { $mergeArray[] = $array1 ? array_shift($array1) : array_shift($array2); } } return $mergeArray; }
示例:
合并前的数组:
$array1 = array(1, 2, 3, 4); $array2 = array('a', 'b', 'c', 'd', 'e');
合并后的数据:
$mergeArray = array ( 0 => 'a', 1 => 1, 2 => 'b', 3 => 2, 4 => 'c', 5 => 'd', 6 => 3, 7 => 4, 8 => 'e', )
php数组随机排序
<?php $array = array('A','2','3','4','5','6','7','8','9','10','J','Q','K'); shuffle($array); //随机排序数组 print_r($array); //输出数组 ?>

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics



Laravel simplifies handling temporary session data using its intuitive flash methods. This is perfect for displaying brief messages, alerts, or notifications within your application. Data persists only for the subsequent request by default: $request-

The PHP Client URL (cURL) extension is a powerful tool for developers, enabling seamless interaction with remote servers and REST APIs. By leveraging libcurl, a well-respected multi-protocol file transfer library, PHP cURL facilitates efficient execution of various network protocols, including HTTP, HTTPS, and FTP. This extension offers granular control over HTTP requests, supports multiple concurrent operations, and provides built-in security features.

Laravel provides concise HTTP response simulation syntax, simplifying HTTP interaction testing. This approach significantly reduces code redundancy while making your test simulation more intuitive. The basic implementation provides a variety of response type shortcuts: use Illuminate\Support\Facades\Http; Http::fake([ 'google.com' => 'Hello World', 'github.com' => ['foo' => 'bar'], 'forge.laravel.com' =>

Alipay PHP...

Do you want to provide real-time, instant solutions to your customers' most pressing problems? Live chat lets you have real-time conversations with customers and resolve their problems instantly. It allows you to provide faster service to your custom

Article discusses late static binding (LSB) in PHP, introduced in PHP 5.3, allowing runtime resolution of static method calls for more flexible inheritance.Main issue: LSB vs. traditional polymorphism; LSB's practical applications and potential perfo

The article discusses adding custom functionality to frameworks, focusing on understanding architecture, identifying extension points, and best practices for integration and debugging.

Article discusses essential security features in frameworks to protect against vulnerabilities, including input validation, authentication, and regular updates.
