PHP中的随机字符串

Random String in PHP

本文关键字：字符串 随机 PHP      更新时间：2023-09-26

你好，我想在php中生成随机字符串，重复像Ag7hlA。我正在尝试这个

<?php
function random_string($length)
{
    $length = (int) $length;
    if ($length < 1) return '';
    $base = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz123456789";
    $max = strlen($base) - 1;
    $string = '';    
    while ($len--)
    {
        $string = $base[mt_rand(0, $max)];
    }
    return $string;
}    
?>

但是没有生成随机字符串

function generateRandomString($length = 10) {
    $char = 'abcdefghijklmnopqrstuvwxyz';
    $randomString = '';
    for ($i = 0; $i < $length; $i++) {
        $randomString .= $char[rand(0, strlen($char) - 1)];
    }
    return $randomString;
}

如果你也想添加数字，那么$char将是->

$char = 'abcdefghijklmnopqrstuvwxyz1234567890';


$char = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890';
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