Анализ метода генерации случайной строки с помощью функции str_shuffle() в php

В этой статье описывается метод генерации случайных строк с использованием функции str_shuffle() в php. Предлагается к рассмотрению, как указано ниже:

str_shuffle(): случайное перемешивание顺序 строки.

С помощью комбинации функций str_shuffle() и substr() можно генерировать уникальные строки каждый раз.

Вот два примера функции str_shuffle():

Пример один:Создание случайной строки из 10 цифр.

$str="QWERTYUIOPASDFGHJKLZXCVBNM1234567890qwertyuiopasdfghjklzxcvbnm";
str_shuffle($str);
$name=substr(str_shuffle($str),26,10);
echo $name;

Running result: bdgNIC04wF

Example two:Generated a 10-character string starting with NT.

$str="QWERTYUIOPASDFGHJKLZXCVBNM1234567890qwertyuiopasdfghjklzxcvbnm";
$str='NT'.substr(str_shuffle($str),5,8);
echo $str;

Running result: NTZYwKiDaF

PS: Here is another online tool with similar functions for your reference:

Online random number/character generation tool:
http://tools.jb51.net/aideddesign/suijishu

High-strength password generator:
http://tools.jb51.net/password/CreateStrongPassword

Readers who are interested in more PHP-related content can check the special topic of this site: 'Summary of php string (string) usage', 'PHP data structures and algorithms tutorial', 'Summary of php program design algorithms', 'Summary of php sorting algorithms', 'Summary of common PHP traversal algorithms and techniques', 'Summary of PHP mathematical operation techniques', 'Complete manual of PHP array (Array) operation techniques', and 'Summary of common database operation techniques in php'.

I hope this article will be helpful to everyone's PHP program design.

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