本文实例讲述了PHP实现二维数组按指定的键名排序的方法。分享给大家供大家参考,具体如下:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
|
<?php /*二维数组按指定的键值排序*/ function array_sort( $array , $keys , $type = 'asc' ){ if (!isset( $array ) || ! is_array ( $array ) || empty ( $array )){ return '' ; } //排序字段名,如:id if (!isset( $keys ) || trim( $keys )== '' ){ return '' ; } //排序方式,如:desc、asc if (!isset( $type ) || $type == '' || !in_array( strtolower ( $type ), array ( 'asc' , 'desc' ))){ return '' ; } //定义一个数组 $keysvalue = array (); foreach ( $array as $key => $val ){ //对排序字段值进行过滤 $val [ $keys ] = str_replace ( '-' , '' , $val [ $keys ]); $val [ $keys ] = str_replace ( ' ' , '' , $val [ $keys ]); $val [ $keys ] = str_replace ( ':' , '' , $val [ $keys ]); //将记录中指定的键名放入数组中,如:[0]=>5,[1]=>3,[2]=>6 $keysvalue [] = $val [ $keys ]; //排序字段,如:id 索引=》排序键名 } asort( $keysvalue ); //按值升序排序,且保持键名与键值之间的索引关系,如:[1]=>3,[0]=>5,[2]=>6 reset( $keysvalue ); //指针重新指向数组第一个 foreach ( $keysvalue as $key => $vals ) { $keysort [] = $key ; //0=>[1],1=>[0],2=>[2] } $keysvalue = array (); $count = count ( $keysort ); //排序记录数 if ( strtolower ( $type ) != 'asc' ){ //降序 for ( $i = $count -1; $i >=0; $i --) { $keysvalue [] = $array [ $keysort [ $i ]]; } } else { //升序 for ( $i =0; $i < $count ; $i ++){ $keysvalue [] = $array [ $keysort [ $i ]]; } } return $keysvalue ; } $array = array ( array ( 'name' => 'Tom' , 'age' => '23' , 'like' => 'beer' ), array ( 'name' => 'Trump' , 'age' => '50' , 'like' => 'Food' ), array ( 'name' => 'Jack' , 'age' => '26' , 'like' => 'Travel' ) ); print_r(array_sort( $array , 'age' )); ?> |
运行结果:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
|
Array ( [0] => Array ( [name] => Tom [age] => 23 [like] => beer ) [1] => Array ( [name] => Jack [age] => 26 [like] => Travel ) [2] => Array ( [name] => Trump [age] => 50 [like] => Food ) ) |
希望本文所述对大家PHP程序设计有所帮助。
原文链接:http://blog.csdn.net/yanhui_wei/article/details/8574630