How to implement simple bubble sorting in PHP

This article mainly introduces the method of simple implementation of bubble sorting in PHP, and analyzes the implementation and usage techniques of PHP bubble sorting in the form of examples. Friends in need can refer to it

The details are as follows:

<?php
$files = array("file11.txt","file22.txt","file1.txt","file2.txt");
function mySort($arr,$nat=false) {
    for($i=0;$i<count($arr);$i++) {
      for($j=0;$j<count($arr)-$i-1;$j++) {
        if($nat) {
          //按照strnatcmp()自然排序函数
          if(strnatcmp($arr[$j], $arr[$j+1])>0) {
            $tmp = $arr[$j];
            $arr[$j] = $arr[$j+1];//从小到大排
            $arr[$j+1] = $tmp;
          }
        } else {
          //按照strcmp()自然排序函数
          if(strcmp($arr[$j], $arr[$j+1])>0) {
            $tmp = $arr[$j];
            $arr[$j] = $arr[$j+1];//从小到大排
            $arr[$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));
?>

The above is the entire content of this article, I hope it will be helpful to everyone's study.

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