order by number

[dotJoon]

I have 4 variables like the below.

code

$a=48;
$b=9;
$c=52;
$d=183;

I like to produce "9 48 52 183" with the code above.

The would-be code below doesn't work correctly, but I hope it shows what I want.

would-be code

echo order($a, $b, $c, $d);

target result
9
48
52
183

How can I get my target result above with the 4 variables?

[Cups]

I guess one way is to put them in an array:

$a=48;
$b=9;
$c=52;
$d=183;

$e = array($a, $b, $c, $d);

sort( $e );

foreach($e as $f){
echo $f . PHP_EOL;
} 

Kinda begs the question why can you not assign them to an array as you get these figures?

$a[] = where ever you got this number from