PHP generates WeChat red envelope code is simple, PHP generates red envelope code_PHP tutorial

PHP generates WeChat red envelope code is simple, PHP generates red envelope code

No more nonsense, all explanations are in the code, the specific code is as follows:

/**
* @param $total [你要发的红包总额]
* @param int $num [发几个]
* @return array[生成红包金额]
*/
function getRedGift($total, $num = 10)
{
$min = 0.01;
$wamp = array();
$returnData = array();
for ($i = 1; $i < $num; ++$i) {
$safe_total = ($total - ($num - $i) * $min) / ($num - $i); //红包金额的最大值
if ($safe_total < 0) break;
$money = @mt_rand($min * 100, $safe_total * 100) / 100;//随机产生一个红包金额
$total = $total - $money;//剩余红包总额
$wamp[$i] = round($money, 2);//保留两位有效数字
}
$wamp[$i] = round($total, 2);
$returnData['MoneySum'] = $wamp;
$returnData['newTotal'] = array_sum($wamp);
return $returnData;
}
//测试
$data = getRedGift(100, 10);
print_r($data);
//result:
/*
Array
(
[1] => 8.7
[2] => 10.09
[3] => 6.23
[4] => 6.87
[5] => 0.47
[6] => 3.12
[7] => 7.52
[8] => 12.21
[9] => 20.53
[10] => 24.26
)*/

This is the end of the code for you, I hope it will be helpful to you! More program codes for generating red envelopes in PHP can be found on the Bangkejia website. Please log in to our official website for more information, thank you!

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