PHP easy to implement bubble sort tutorial

The example in this article describes a simple way to implement a bubble sort in PHP. Share to everyone for your reference, specific as follows:

<?php $files =array ("File11.txt", "File22.txt", "file1.txt", "file2.txt"); Functionmysort ($arr, $nat =false) { for ($i =0; $i <count ($arr); $i + +) { For ($j =0 $j <count ($arr)-$i-1; $j + +) { if ($nat) { According to STRNATCMP () natural sort function if (strnatcmp ($arr [$j], $arr [$j +1]) >0) { $tmp = $arr [$j]; $arr [$j] = $arr [$j +1];//from small to large rows $arr [$j +1] = $tmp; } }else{ According to strcmp () natural sort function if (strcmp ($arr [$j], $arr [$j +1]) >0) { $tmp = $arr [$j]; $arr [$j] = $arr [$j +1];//from small to large rows $arr [$j +1] = $tmp; } } } } Return$arr; } Array ([0] => file1.txt [1] => file11.txt [2] => file2.txt [3] => File22.txt) Print_r (Mysort ($files, false)); echo "<br/>"; 2<11 Array ([0] => file1.txt [1] => file2.txt [2] => file11.txt [3] => File22.txt) Print_r (Mysort ($files, true)); ?>