PHP Sorting by turns - php

Question

I want to sort the following data items in the order they are presented below :
$char = array('A', 'A', 'A', 'A', 'A', 'B', 'B', 'B', 'B', 'B', 'C', 'C', 'C', 'C', 'C');
And i want the output is :
$char = array('A', 'B', 'C', 'A', 'B', 'C', 'A', 'B', 'C', 'A', 'B', 'C', 'A', 'B', 'C');
Any tricks to make it sort with PHP
Many Thanks!

Answer 1

bool sort ( array &$array [, int $sort_flags = SORT_REGULAR ] )
This function sorts an array. Elements will be arranged from lowest to highest when this function has completed.
Try this:
$char = array('A', 'B', 'C', 'A', 'B', 'C', 'A', 'B', 'C', 'A', 'B', 'C', 'A', 'B', 'C');
sort($char);
print_r($char);
Credit: here

Answer 2

In order to sort an array in the Ascending order of the values you can use the asort() so that it sorts the array in ascending order of the values.
asort — Sort an array and maintain index association.
This function sorts an array such that array indices maintain their correlation with the array elements they are associated with. This is used mainly when sorting associative arrays where the actual element order is significant.
Example Code:
<?php
$fruits = array("d" => "lemon", "a" => "orange", "b" => "banana", "c" => "apple");
asort($fruits);
foreach ($fruits as $key => $val) {
echo "$key = $val\n";
}
?>
Output:
c = apple
b = banana
d = lemon
a = orange
Example Reference: asort
Solution to your Question
Your Code needs to be like this.
<?php
$char = array('A', 'B', 'C', 'A', 'B', 'C', 'A', 'B', 'C', 'A', 'B', 'C', 'A', 'B', 'C');
asort($char);//Sorts the array here
foreach ($char as $key => $val) {
$values[] = $val;
}
print_r($values);//Print the sorted output
?>
Output:
Array ( [0] => A [1] => A [2] => A [3] => A [4] => A [5] => B [6] => B [7] => B [8] => B [9] => B [10] => C [11] => C [12] => C [13] => C [14] => C )