How get a (fixed) value based on number range - php

Question

I have a number, e.g. $humidity
I need to check value of this number and get a fixed value if number is in a predetermined range.
E.g.
if ($humidity<30) {
return 'dry';
}
if ($humidity>=30 && $humidity <=40) {
return 'wet'
}
if ($humidty>40 && $humidity<70) {
return 'confortable'
}
And so on.
Is there another possibility to don't use 4/5 different if ?

Answer 1

As long as you process the values in order, you don't need both the upper and lower values of each range. Then you can utilize short-circuiting and just put everything in a loop:
function nameOf($humidity)
{
$list = [
30 => 'dry',
40 => 'wet',
70 => 'comfortable',
];
foreach ($list as $value => $name) {
if ($humidity < $value) {
return $name;
}
}
return 'default';
}

Answer 2

I think switch is great for this usage:
$result = null;
switch(true) {
case $humidity < 30:
$result = 'dry';
break;
case $humidity >= 30 && $humidity < 40:
$result = 'wet';
break;
case $humidty > 40 && $humidity < 70:
$result = 'comfortable';
break;
}
return $result;

Answer 3

you can create an range array for your temps and then array_walk that to find the right range.
$h=40;
$harr = [ 0 => 'dry', 1 => 'wet', 2 => 'confy'];
$range = array_flip(range(0, 100, 30));
array_walk($range, 'findHumidity', $range);
var_dump($harr[$result]);
function findHumidity($value, $key, $r){
global $h; //if you using a class and properties you can ignore these two lines
global $result;
$normalRange = array_flip($r);
if($h> $key && $normalRange[$value+1]!=null && $h<= $normalRange[$value+1]){
$result = $value;
}
}
Working example: https://3v4l.org/fWLDu (a simplified version: https://3v4l.org/ROjWk)
or you can define the range array manually like here: https://3v4l.org/B0oTU