php - 将迭代次数转换为有限范围(如星期几)

Question

我需要将迭代次数转换为 1 到 7 之间的范围。

$y = keepInRange(1, 7, $i)

结果输入->输出预计如下

• 1 -> 1
• ...
• 7 -> 7
• 8 -> 1
• 9 -> 2
• ...
• 14 -> 7
• 15 -> 1

我已经尝试过以下但没有成功:

min(7, max(1, $numberToStr[$i])) (all output 1)
$y = $i % 7 (all outputs 0, Edit: this was a mistake by me, its the solution when +1 is added.)

Answer 1

试试这个

<?php
$num = 15;
$res= $num%7;
if($res == 0)
{
    echo "7";
}
else
{
    echo $res;
}

https://3v4l.org/dDGs3

希望对你有帮助