PHP生成唯一订单号_PHP
在网上找了一番,发现这位同学的想法挺不错的,redtamo,具体的请稳步过去看看,我作简要概述,该方法用上了英文字母、年月日、Unix 时间戳和微秒数、随机数,重复的可能性大大降低,还是很不错的。使用字母很有代表性,一个字母对应一个年份,总共16位,不多也不少.
1.
代码如下:
$yCode = array('A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J');
$orderSn = $yCode[intval(date('Y')) - 2011] . strtoupper(dechex(date('m'))) . date('d') . substr(time(), -5) . substr(microtime()] 2, 5) . sprintf('%02d', rand(0, 99));
?>
生成效果:
A422694333616096
2.
代码如下:
<?php
function build_order_no(){
return date('Ymd').substr(implode(NULL, array_map('ord', str_split(substr(uniqid(), 7, 13), 1))), 0, 8);
}
echo build_order_no();
?>
输出结果:
2014062356100485 2014062349535399
以上所述就是本文的全部内容了,希望大家能够喜欢。

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