某个商城中用户消费1元送1积分,商家为了刺激用户消费,用户消费1000元送1200积分,消费2000元送2500积分,消费5000元送8000积分。
(1)用户消费1500元,应送____积分,消费4000元应送____积分,消费8500元应送____积分
(2)请写出一个函数实现上述逻辑,输入为用户消费的金额,输出为送的积分数量
感觉需要用到一个数学公式吧?
(1)用户消费1500元,应送____积分,消费4000元应送____积分,消费8500元应送____积分
(2)请写出一个函数实现上述逻辑,输入为用户消费的金额,输出为送的积分数量
感觉需要用到一个数学公式吧?
<?phpif(!function_exists('getIntegral')){ function getIntegral($rmb){
$itl = 0;
if($rmb >= 1){
$itl += 1;
}
if($rmb >= 1000){
$itl += 1200;
}
if($rmb >= 2000){
$itl += 2500;
}
if($rmb >= 5000){
$itl += 8000;
}
return $itl;
}
}
dump(getIntegral(1500));die;
#4 的 getIntegral(1500) 得 1201
显然是不对的!应为 1700
* 计算积分
*/
function calc_integral($integral)
{
$integral = intval($integral);
if($integral >= 5000) {return 8000 + calc_integral($integral-5000);}
if($integral >= 2000) {return 2500 + calc_integral($integral-2000);}
if($integral >= 1000) {return 1200 + calc_integral($integral-1000);}
return $integral;
}
$count_5000 = floor($consume / 5000);
$consume = $consume - $count_5000 * 5000;
$count_2000 = floor($consume / 2000);
$consume = $consume - $count_2000 * 2000;
$count_1000 = floor($consume / 1000);
$consume = $consume - $count_1000 * 1000;
return $count_5000 * 8000 + $count_2000 * 2500 + $count_1000 * 1200 + $consume;
}
* 计算积分
*/
function calc_integral($integral)
{
$integral = intval($integral);
if($integral >= 5000) {return 8000 + calc_integral($integral-5000);}
if($integral >= 2000) {return 2500 + calc_integral($integral-2000);}
if($integral >= 1000) {return 1200 + calc_integral($integral-1000);}
return $integral;
}
function calScore($consume)
{ $score = 0;
if($consume >= 5000 ) {
$score = $consume + 5000;
} elseif($consume >= 2000 && $consume < 5000) {
$score = $consume + 2500;
} elseif($consume >= 1000 && $consume < 2000) {
$score = $consume + 1200;
} else {
$score = $consume;
} return $score;}echo calScore(1500) . PHP_EOL;
echo calScore(4000) . PHP_EOL;
echo calScore(8500) . PHP_EOL;