In PHP you can do this to order an array of strings by their size:
usort($parts, function($a, $b) {
return strlen($b) - strlen($a);
});
How do I order an array of strings by size but if two strings are the same size, order them by their index in the original array.
eg:
I a o delicious cake
becomes:
delicious cake I a o
At the moment with my current code it becomes:
delicious cake o a i
Please use this method for sort array.
<?php
$parts = "I a o delicious cake";
$parts = explode(" ",$parts);
array_multisort(array_map('strlen', $parts),SORT_DESC, $parts); // this is for DESC order
//array_multisort(array_map('strlen', $parts),SORT_ASC, $parts); // you can use this for ASC order
echo "<pre>";
print_r($parts); //return like this "delicious cake I a o"
?>
For sorting with length then index you can use array_multisort like below
<?php
$str="I love to code";
$parts=explode(" ", $str);
$keys = array_keys($parts);
$values = array_values($parts);
array_multisort(array_map('strlen', $values), SORT_ASC, $keys, SORT_ASC, $parts);
$new_str = implode(" ", $parts);
echo $new_str;
demo : https://3v4l.org/BJ1Cl
You may be able to use uasort instead of usort.
From the documentation:
uasort — Sort an array with a user-defined comparison function and maintain index association
The normal usort function does not do this:
If two members compare as equal, their relative order in the sorted array is undefined.
