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60 lines
1.9 KiB
PHP
60 lines
1.9 KiB
PHP
<?php
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declare(strict_types=1);
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namespace App\Helper;
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class StringHelper
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{
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public static function getRandomString($length, $withSpecialChar = false)
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{
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$chars = array(
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'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k',
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'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v',
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'w', 'x', 'y', 'z', 'A', 'B', 'C', 'D', 'E', 'F', 'G',
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'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R',
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'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', '0', '1', '2',
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'3', '4', '5', '6', '7', '8', '9'
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);
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if($withSpecialChar){
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$chars = array_merge($chars, array(
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'!', '@', '#', '$', '?', '|', '{', '/', ':', ';',
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'%', '^', '&', '*', '(', ')', '-', '_', '[', ']',
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'}', '<', '>', '~', '+', '=', ',', '.'
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));
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}
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$charsLen = count($chars) - 1;
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shuffle($chars);
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$password = '';
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for($i=0; $i<$length; $i++){
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$password .= $chars[mt_rand(0, $charsLen)];
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}
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return $password;
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}
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public static function generateOrderNo() {
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$now = time();
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$key = RedisKey::getGenerateOrderNoKey($now);
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$incrId = Redis::incr($key);
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$incrId = '' . $incrId;
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Redis::expire($key, 5*60);
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$padLength = 6 - strlen($incrId);
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$incrId = str_pad($incrId, $padLength, '0', STR_PAD_LEFT);
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return date('YmdHis', $now) . $incrId;
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}
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public static function generateBankCardOrderNo() {
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$now = time();
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$key = RedisKey::getGenerateBindCardKey($now);
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$incrId = Redis::incr($key);
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$incrId = '' . $incrId;
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Redis::expire($key, 5*60);
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$padLength = 6 - strlen($incrId);
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$incrId = str_pad($incrId, $padLength, '0', STR_PAD_LEFT);
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return date('YmdHis', $now) . $incrId;
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}
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} |