How to implement bubble sort using php function

How to implement bubble sorting using the php function: 1. Create a PHP sample file; 2. Define an array; 3. Implement bubble sorting through the "function bubble_sort($array){...}" method That’s it.

The operating environment of this article: Windows 7 system, PHP version 7.1, Dell G3 computer.

How to use php function to implement bubble sort?

A simple example of a bubble sort function written in PHP

A few days ago I encountered a test question about an algorithm, which required the use of PHP language to sort an array. , I wrote a function using bubble sorting method and share it with you.

<?
//冒泡排序法
function bubble_sort($array)
{
    $count = count($array);
    if($count <= 0)
    {
        return false;
    }
    for($i=0; $i<$count; $i++)
    {
        for($k=$count-1; $k>$i; $k--)
        {
            if($array[$k] < $array[$k-1])
            {
                $tmp = $array[$k];
                $array[$k] = $array[$k-1];
                $array[$k-1] = $tmp;
            }
        }
    }
    return $array;
}
$arr = array(3, 5, 1, 4, 2);
$s = bubble_sort($arr);
print_r($s);
?>

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