Sorting

[Alicia]

Hi,

 

May I know is there any function that I can use to have 3 digits number re-arranged to small to big ?

something like

 

762

 

then the output will be 267.

 

Please advise. thanks

[trq]

You would need to right a custom function for this. It's not really that common a request.

[manix]

<?php
function whatever($input){
$input = (string)$input;
$input = substr($input,-1,1).substr($input,-2,1).substr($input,0,1);
return (int)$input;
}
echo whatever(762);
?>

[cyberRobot]

<?php
function whatever($input){
$input = (string)$input;
$input = substr($input,-1,1).substr($input,-2,1).substr($input,0,1);
return (int)$input;
}
echo whatever(762);
?>

 

 

That's not quite what the OP was asking. It works for the specific value mentioned, but it doesn't work if the input is "726" for example.

 

Instead, you could try something like:

 

<?php
function whatever($input){
//INITIALIZE VARIABLES
$num_array = array();

//BREAK APART THE INPUT STRING
for($i=0; $i<strlen($input); $i++) {
	$num_array[] = substr($input, $i, 1);
}

//SORT THE ARRAY AND RETURN THE RESULTS
sort($num_array);
return implode($num_array);
}

echo whatever($_GET['input']);
?>

[Alex]

Instead of using a for loop and substr, alternatively you can take advantage of str_split, my take:

 

function dontKnowWhatToNameThis($n) {
    $split = str_split($n);
    sort($split);
    return implode($split);
}

[TeNDoLLA]

Instead of using a for loop and substr, alternatively you can take advantage of str_split, my take:

 

function dontKnowWhatToNameThis($n) {
    $split = str_split($n);
    sort($split);
    return implode($split);
}

 

Was going to post exactly the same earlier, but assumed the manix's version worked just fine when I tested it with only the given test value Good feature in this method is also that the number can be longer or shorter than 3 digits and it still works.

[manix]

<?php
function whatever($input){
$input = (string)$input;
$input = substr($input,-1,1).substr($input,-2,1).substr($input,0,1);
return (int)$input;
}
echo whatever(762);
?>

 

this is supposed to work with any 3 digit input?

[TeNDoLLA]

Nopes, if you try e.g value 726 it will output: 627 instead of 267. It will only flip the numbers around, not arrange them from lowest to highest.

[manix]

well isn't that the point? displaying them backwards?

 

EDIT: I just read the first post again, my bad sorry