一个php生成16位随机数的代码(两种方法),16位随机数
一个php生成16位随机数的代码(两种方法),16位随机数
分享一个php生成16位随机数的代码,php生成随机数的二种方法。
方法1
复制代码 代码如下:
$a = mt_rand(10000000,99999999);
$b = mt_rand(10000000,99999999);
echo $a.$b;
方法2:
1 2 3 4 5 6 7 |
|
php 怎生成16位随机数?只有数字
有点投机取巧的意味
一个生成四位随机数的PHP代码
纯数字的四位随机数
rand(1000,9999)
数字和字符混搭的四位随机字符串:
function GetRandStr($len)
{
$chars = array(
"a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k",
"l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v",
"w", "x", "y", "z", "A", "B", "C", "D", "E", "F", "G",
"H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R",
"S", "T", "U", "V", "W", "X", "Y", "Z", "0", "1", "2",
"3", "4", "5", "6", "7", "8", "9"
);
$charsLen = count($chars) - 1;
shuffle($chars);
$output = "";
for ($i=0; $i {
$output .= $chars[mt_rand(0, $charsLen)];
}
return $output;
}
echo GetRandStr(4);

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

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

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



How to use RANDBETWEEN to generate random numbers in Excel If you want to generate random numbers within a specific range, the RANDBETWEEN function is a quick and easy way to do it. This allows you to generate random integers between any two values of your choice. Generate random numbers in Excel using RANDBETWEEN: Click the cell where you want the first random number to appear. Type =RANDBETWEEN(1,500) replacing "1" with the lowest random number you want to generate and "500" with

How to optimize random number generation performance in Java development Random numbers are widely used in computer science, especially in cryptography, simulation, games and other fields. In Java development, we often need to generate random numbers to meet various needs. However, the performance of random number generation is often one of the concerns of developers. This article will explore how to optimize random number generation performance in Java development. ThreadLocalRandom class was introduced in Java7 using ThreadLocalRandom class

How to use PHP arrays to generate random numbers and verification codes Random numbers and verification codes are very common during the development of websites and applications. PHP provides various methods to generate random numbers and verification codes. This article will introduce how to use PHP arrays to generate random numbers and verification codes, with corresponding code examples. 1. Generate random numbers In PHP, we can use the rand() function to generate random numbers. The rand() function requires two parameters, the minimum value and the maximum value. The sample code is as follows: $min=1;$max=

Generate random numbers using Go language Go language is a modern, concise and efficient programming language that provides many built-in libraries for generating random numbers. Among them, the crypto/rand package provides a series of functions to generate secure random numbers. In this article, we will generate random numbers by using the Read function from the crypto/rand package. First, we need to import the crypto/rand package and create a byte array to store the random numbers. The code example is as follows: packagemain

Explore the method and application of NumPy to generate random numbers. Introduction: Random numbers are widely used in computer science and statistics, such as simulation experiments, data generation and feature selection. In Python, the NumPy (NumericalPython) library is a powerful numerical computing library that provides many functions for generating random numbers. This article will explore the random number generation method in NumPy and give specific code examples. 1. NumPy’s random number generation function provided by NumPy

How to use Random.nextInt() method to generate random numbers in Java? Random numbers are widely used in computer science and can be used to generate passwords, random events in games, random sampling in data science, etc. Java provides the Random class to generate random numbers, and the nextInt() method can be used to generate a random integer. Below I will introduce how to use the Random.nextInt() method to generate random numbers and provide specific code examples. First, we need

How to avoid generating duplicate random numbers in Golang: Create a new random number generator rand.New(rand.Source). Use rand.NewSource(time.Now().UnixNano()) as the entropy source. Use rand.Intn(n) to generate random integers.

Using Java's Math.random() function to generate random numbers. Random numbers are a very common concept in computer programming and can help us implement various functions, such as generating random passwords, lottery draws, random events in games, etc. In Java, we can use Math.random() function to generate random numbers. The Math.random() function is a static method in the Java standard library. It returns a random double type number greater than or equal to 0 and less than 1. pass
