mirror of
https://gitee.com/zoujingli/ThinkAdmin.git
synced 2025-09-08 18:05:19 +08:00
71 lines
2.3 KiB
PHP
71 lines
2.3 KiB
PHP
<?php
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// +----------------------------------------------------------------------
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// | ThinkAdmin
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// +----------------------------------------------------------------------
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// | 版权所有 2014~2019 广州楚才信息科技有限公司 [ http://www.cuci.cc ]
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// +----------------------------------------------------------------------
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// | 官方网站: http://demo.thinkadmin.top
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// +----------------------------------------------------------------------
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// | 开源协议 ( https://mit-license.org )
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// +----------------------------------------------------------------------
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// | gitee 代码仓库：https://gitee.com/zoujingli/ThinkAdmin
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// | github 代码仓库：https://github.com/zoujingli/ThinkAdmin
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// +----------------------------------------------------------------------
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namespace think\admin\extend;
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/**
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* 随机数码管理扩展
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* Class CodeExtend
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* @package think\admin\extend
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*/
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class CodeExtend
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{
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/**
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* 获取随机字符串编码
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* @param integer $length 字符串长度
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* @param integer $type 字符串类型(1纯数字,2纯字母,3数字字母)
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* @return string
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*/
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public static function random($length = 10, $type = 1)
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{
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$numbs = '0123456789';
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$chars = 'abcdefghijklmnopqrstuvwxyz';
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if (intval($type) === 1) $chars = $numbs;
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if (intval($type) === 2) $chars = "a{$chars}";
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if (intval($type) === 3) $chars = "{$numbs}{$chars}";
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$string = $chars[rand(1, strlen($chars) - 1)];
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if (isset($chars)) while (strlen($string) < $length) {
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$string .= $chars[rand(0, strlen($chars) - 1)];
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}
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return $string;
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}
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/**
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* 唯一日期编码
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* @param integer $length
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* @return string
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*/
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public static function uniqidDate($length = 16)
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{
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if ($length < 14) $length = 14;
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$string = date('Ymd') . (date('H') + date('i')) . date('s');
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while (strlen($string) < $length) $string .= rand(0, 9);
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return $string;
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}
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/**
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* 唯一数字编码
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* @param integer $length
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* @return string
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*/
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public static function uniqidNumber($length = 12)
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{
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$time = time() . '';
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if ($length < 10) $length = 10;
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$string = ($time[0] + $time[1]) . substr($time, 2) . rand(0, 9);
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while (strlen($string) < $length) $string .= rand(0, 9);
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return $string;
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}
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} |