如何使用php获取此格式的楼层/ ceil号码?
我希望得到这样的结果
inpput====> output
.....
3.0 =======> 3.0
3.1 =======> 3.0
3.2 =======> 3.0
3.3 =======> 3.0
3.4 =======> 3.0
3.5 =======> 4.0
3.6 =======> 4.0
3.7 =======> 4.0
3.8 =======> 4.0
3.9 =======> 4.0
............................................... ....................
所以,我使用这段代码
$x = floor($input);
但我得到了这个结果
inpput====> output
.....
3.0 =======> 3.0
3.1 =======> 3.0
3.2 =======> 3.0
3.3 =======> 3.0
3.4 =======> 3.0
3.5 =======> 3.0
3.6 =======> 3.0
3.7 =======> 3.0
3.8 =======> 3.0
3.9 =======> 3.0
............................................... ....................
然后我使用此代码
$x = ceil($input);
但我得到了这个结果
inpput====> output
.....
3.0 =======> 3.0
3.1 =======> 4.0
3.2 =======> 4.0
3.3 =======> 4.0
3.4 =======> 4.0
3.5 =======> 4.0
3.6 =======> 4.0
3.7 =======> 4.0
3.8 =======> 4.0
3.9 =======> 4.0
我该怎样做才能得到这个结果?
inpput====> output
.....
3.0 =======> 3.0
3.1 =======> 3.0
3.2 =======> 3.0
3.3 =======> 3.0
3.4 =======> 3.0
3.5 =======> 4.0
3.6 =======> 4.0
3.7 =======> 4.0
3.8 =======> 4.0
3.9 =======> 4.0
答案 0 :(得分:2)
答案 1 :(得分:1)
使用round()功能,然后您可以访问舍入模式。
<?php
foreach(range(3, 4, 0.1) as $i) {
echo $i.' =======> '.number_format(round($i, 0, PHP_ROUND_HALF_UP), 1).PHP_EOL;
}
/*
3 =======> 3.0
3.1 =======> 3.0
3.2 =======> 3.0
3.3 =======> 3.0
3.4 =======> 3.0
3.5 =======> 4.0
3.6 =======> 4.0
3.7 =======> 4.0
3.8 =======> 4.0
3.9 =======> 4.0
4 =======> 4.0
*/