php quick sort method

Function qsort($arr){
                                                                        use using qsort($arr) ” / / Get the length of the array
      $len = count($arr);
                             . //Define the middle key left Right -click
$ key [0] = $ arr [0];
$ left = array ();
$ right = array (); < $len; $i++) {
                                                                                                                                                              ​ 
}else{
                                                                                                                                                                              qsort($left);
$right = qsort($right);
//Merge multiple arrays and return
                                                            use using using ’           out out out out out out out out of ’ s to ’ s ‐ ‐ ‐‐‐‐ return array_merge($left,$key,$right);
‐ }
      $arr = array(1232,57,34,657543,21,76,43476321,476,52,76, 5,-23);
$arr = qsort($arr);
var_dump($arr);
?>
The above introduces the PHP quick sort method, including aspects of the content. I hope it will be helpful to friends who are interested in PHP tutorials.