PHP如何使用shuffle()函数生成随机密码？（代码示例）

<?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";

生成的密码 : y4'8Z-by2sx

chr ( int $ascii ) : string

shuffle ( array &$array ) : bool