PHP Functions - arsort()

 1 <?php
 2 
 3 
 4 $characters = array(‘a‘,‘b‘,‘c‘,‘d‘,‘e‘,‘f‘);
 5 arsort($characters);
 6 print_r($characters);
 7 /*
 8     Array ( [5] => f [4] => e [3] => d [2] => c [1] => b [0] => a ) 
 9 */
10 
11 
12 
13 $numbers = array(1,2,3,4,5,6,7,8);
14 arsort($numbers);
15 print_r($numbers);
16 /*
17 Array ( [7] => 8 [6] => 7 [5] => 6 [4] => 5 [3] => 4 [2] => 3 [1] => 2 [0] => 1 )
18 */
19 
20 $fruits = array(‘lemon‘ , ‘orange‘ ,‘banana‘ , ‘apple‘);
21 arsort($fruits);
22 print_r($fruits);
23 /*
24 Array ( [1] => orange [0] => lemon [2] => banana [3] => apple )
25 */
26 
27 /*arsort()函数对中文的排序结果*/
28 $chinese = array(‘爱‘,‘本‘,‘吃‘,‘地‘);//ai-ben-chi-di
29 var_dump(arsort($chinese));
30 print_r($chinese);
31 /*
32     bool(true) 
33     Array ( [0] => 爱 [1] => 本 [3] => 地 [2] => 吃 )
34 */
35 
36 $pingyin = array(‘ai‘,‘ben‘,‘chi‘,‘di‘);
37 arsort($pingyin);
38 print_r($pingyin);
39 /*
40     Array ( [3] => di [2] => chi [1] => ben [0] => ai )
41 */
42 ?>