Two examples of php two-dimensional array sorting

This article introduces two examples of two-dimensional array sorting in PHP, both of which are relatively simple. It is a good reference for friends who are learning PHP array sorting.

Share a piece of code to implement sorting of two-dimensional arrays in php. Code:

<?php
/**
* 二维数组排序
* by bbs.it-home.org
*/
 $good = array();
 
 for($i = 0; $i<7 ; $i++ ){
     
     $good[$i]['price']  = rand(1,10000);
    $good[$i]['hot']    = rand(1,100);
     $good[$i]['follow'] = rand(1,1000);    
 
 }
 
 echo '<pre class="brush:php;toolbar:false">';
 
print_r($good);

echo '

'; $hot=array(); $follow=array(); foreach($good as $k=>$v){ $hot[$k] = $v['hot']; $follow[$k] = $v['follow']; } //Sort two-dimensional array //Method 1, first sort in descending order by hot field, and then in descending order by follow array_multisort($hot,SORT_DESC,$follow,SORT_DESC,$good); echo '

';
print_r($good);
echo '

'; //Method Two functionxx($a, $b) { if ($a['price'] == $b['price']) { return ($a['hot'] < $b['hot']) ? 1 : -1; ; } return ($a['price'] < $b['price']) ? 1 : -1; } $a = array( 0=>array('price'=>123,'hot'=>34543), 1=>array('price'=>434,'hot'=>234), 2=>array('price'=>42,'hot'=>2232), 3=>array('price'=>42,'hot'=>235432), 4=>array('price'=>33443,'hot'=>12), 4=>array('price'=>434,'hot'=>1211), ); usort($a, 'xx'); echo '

';
print_r($a);
echo '

';

>>> For more information, please view the complete list of php array sorting methods