implement sorting without sort in php

task

task 1:<?php //Complete sorting functionality without using any inbuilt sorting related functions $arr = [50,20,35,15,45]; echo "Before Sorting <br/>"; print_r($arr); //sorting logic start //write your code here //sorting logic end echo "After Sorting <br/>" print_r($arr); ?>

task:2

With out using limit in query, display 2nd highest rank person

task 

programm

<?php
$arr = [50, 20, 35, 15, 45];

echo "Before Sorting <br/>";
print_r($arr);

// sorting logic start

$length = count($arr);
for ($i = 0; $i < $length - 1; $i++) {
    for ($j = 0; $j < $length - $i - 1; $j++) {
        if ($arr[$j] > $arr[$j + 1]) {
            // swap elements
            $temp = $arr[$j];
            $arr[$j] = $arr[$j + 1];
            $arr[$j + 1] = $temp;
        }
    }
}

// sorting logic end

echo "After Sorting <br/>";
print_r($arr);
?>

<!-- With out using limit in query, display 2nd highest rank person -->

<!-- SELECT Rank
FROM Persons
WHERE Rank < (SELECT MAX(Rank) FROM Persons)
ORDER BY Rank DESC -->