Untitled

<html lang="pl">
    <head>
        <title>Bubble Sort</title>
    </head>
    <body>

        <form action="sort.php" method="get">
            Liczby (odzielone przecinkiem): <input type='text' name='numbers'/>
            <button name="submitFormBtn">Dalej</button>
        </form>

    </body>
</html>

////////////////sort.php/////////////////////
<?php

// Putting values from input into variable
$numbers = $_GET['numbers'];
// Creating empty array
$choosenNumbers = [];
// Creating array values from text input
$choosenNumbers = explode(",", $numbers);


/*
* Function sorting choosen array
* Params $array
*/
function bubbleSort($array) {
    // Creating loop
    for ($i = 0; $i < count($array); $i++) {
        // Creating loop that's sorting array $array
        for ($j = 0; $j < count($array) - 1; $j++) {
            // Checking if index $j is bigger than index $j + 1
            if ($array[$j] > $array[$j+1]) {
                // Swapping array pieces
                $temp = $array[$j];
                $array[$j] = $array[$j+1];
                $array[$j+1] = $temp;
            }
        }
    }
    print_r($array);
}

// Calling function
bubbleSort($choosenNumbers);
echo "<br /><a href='index.php'>Powrót</a>";

?>