How to use shuffle() function to generate random password in PHP? (code example)

In this article, we will introduce to you how to use the PHP shuffle() function to generate a random password, whose password contains uppercase, lowercase, numbers and others.

# Below we will introduce the method of generating random passwords by the shuffle() function based on specific code examples.

PHP code example is as follows:

<?php
function rand_Pass($upper = 1, $lower = 5, $numeric = 3, $other = 2) {

    $pass_order = Array();
    $passWord = &#39;&#39;;

    //创建密码的内容
    for ($i = 0; $i < $upper; $i++) {
        $pass_order[] = chr(rand(65, 90));
    }
    for ($i = 0; $i < $lower; $i++) {
        $pass_order[] = chr(rand(97, 122));
    }
    for ($i = 0; $i < $numeric; $i++) {
        $pass_order[] = chr(rand(48, 57));
    }
    for ($i = 0; $i < $other; $i++) {
        $pass_order[] = chr(rand(33, 47));
    }

    //使用shuffle()来打乱顺序
    shuffle($pass_order);

    //最终密码字符串
    foreach ($pass_order as $char) {
        $passWord .= $char;
    }
    return $passWord;
}
echo "\n"."生成的密码 : ".rand_Pass()."\n";

Output:

生成的密码 : y4'8Z-by2sx

Function introduction:

chr( )Function returns the specified character

chr ( int $ascii ) : string

Returns a single character corresponding to ascii specified.

shuffle()Function to shuffle the array

shuffle ( array &$array ) : bool

This function shuffles (randomly arranges the order of cells) an array. It uses a pseudo-random number generator and is not suitable for cryptography situations.

This article is about using the shuffle() function to generate random passwords. I hope it will be helpful to friends in need!

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