PHP生成唯一的促销/优惠/折扣码(附源码)
每一个电子商务网站,现在有一种或多种类型的优惠/折扣/优惠券系统,给大家分享一下如何在PHP生成唯一的促销/折扣码。主要是实现一个优惠码系统,可用于跟踪用户来自某些特定的来源,例如有些主机促销的时候链接到别的页面会有优惠码生成,还有更多的促销代码等。因此,今天将讨论这样一个优惠码的实现过程
考虑的需求
代码应该很容易记住,因此保持短的长度是一个好主意,使用户可以很容易地记住它
没有特殊字符!它应该是字母数字组合,因为它会永远是为用户更容易记住
长度推广/折扣代码的正确。没有一个标准的长度,因为它取决于你想生成的长度,例如,如果你想生成1000代码的代码,那么你需要在至少4个字符代码。促销/优惠码长度通常为4到8个字符,但它取决于您的要求。
那好吧,让我们开始吧!让我们来看看代码,然后我会详细解释。它很容易
复制代码 代码如下:
/**
* @param int $no_of_codes//定义一个int类型的参数 用来确定生成多少个优惠码
* @param array $exclude_codes_array//定义一个exclude_codes_array类型的数组
* @param int $code_length //定义一个code_length的参数来确定优惠码的长度
* @return array//返回数组
*/
function generate_promotion_code($no_of_codes,$exclude_codes_array='',$code_length = 4)
{
$characters = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
$promotion_codes = array();//这个数组用来接收生成的优惠码
for($j = 0 ; $j {
$code = "";
for ($i = 0; $i {
$code .= $characters[mt_rand(0, strlen($characters)-1)];
}
//如果生成的4位随机数不再我们定义的$promotion_codes函数里面
if(!in_array($code,$promotion_codes))
{
if(is_array($exclude_codes_array))//
{
if(!in_array($code,$exclude_codes_array))//排除已经使用的优惠码
{
$promotion_codes[$j] = $code;将生成的新优惠码赋值给promotion_codes数组
}
else
{
$j--;
}
}
else
{
$promotion_codes[$j] = $code;//将优惠码赋值给数组
}
}
else
{
$j--;
}
}
return $promotion_codes;
}
echo '
Promotion / Discount Codes
';echo '
'; <br>print_r(generate_promotion_code(50,'',4)); <br>echo '
?>
该代码由三个参数组成,
第一个参数是你要生成优惠码的个数(在这里是生成50个)。第二个参数exclude array,确保在当前列表中的生成唯一优惠码,所以如果你已经数据库中有一些未使用的代码,你可以把它传递给exclude。最后一个参数是优惠码的的长度。这个函数将返回规定长度的优惠码 这里是4位的优惠码。
这里我已经使用数字和大写字母组合,赋值给$characters的字符串,你可以使用小写字母或任何其他的字母组合试用。此功能的作用是生成唯一的优惠码。这个是PHP版本的,下一次给一个NET版本的,希望能帮助大家
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