bourse stock
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2 months ago
<?php
namespace app\utility;
class Tool
{
public function orderNo(int $length = 20)
{
$prefix = date('ymd'); // 可选的订单号前缀,如需要可以在这里设置
$timestamp = time();
$randomNum = mt_rand(10000, 99999); // 使用 mt_rand() 生成一个四位的随机数
// 将时间戳和随机数组合起来作为订单号的一部分
$orderNumber = $prefix . $timestamp . $randomNum;
// 如果订单号的长度超过指定的长度,则截取前面指定长度的部分
if (strlen($orderNumber) > $length) {
$orderNumber = substr($orderNumber, 0, $length);
}
return $orderNumber;
}
}