Home  >  Article  >  Backend Development  >  How to quickly sort php associative array, php associative array_PHP tutorial

How to quickly sort php associative array, php associative array_PHP tutorial

WBOY
WBOYOriginal
2016-07-13 09:56:55850browse

How to quickly sort php associative arrays, php associative arrays

The example in this article describes the method of quick sorting of php associative arrays. Share it with everyone for your reference. The details are as follows:

<&#63;php
 function qsort($a,$f) {
 qsort_do(&$a,0,Count($a)-1,$f);
 }
 function qsort_do($a,$l,$r,$f) {
 if ($l < $r) {
   qsort_partition(&$a,$l,$r,&$lp,&$rp,$f);
   qsort_do(&$a,$l,$lp,$f);
   qsort_do(&$a,$rp,$r,$f);
  }
 }
 function qsort_partition($a,$l,$r,$lp,$rp,$f) {
 $i = $l+1;
 $j = $l+1;
  while ($j <= $r) {
   if ($f($a[$j],$a[$l])) {
    $tmp = $a[$j];
    $a[$j] = $a[$i];
    $a[$i] = $tmp;
    $i++;
   }
   $j++;
 }
 $x = $a[$l];
 $a[$l] = $a[$i-1];
 $a[$i-1] = $x;
 $lp = $i - 2;
 $rp = $i;
}
&#63;>

I hope this article will be helpful to everyone’s PHP programming design.

www.bkjia.comtruehttp: //www.bkjia.com/PHPjc/985262.htmlTechArticleHow to quickly sort php associative arrays, php associative arrays This article describes the method of quick sorting php associative arrays. Share it with everyone for your reference. The details are as follows: php function qso...
Statement:
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn