本文实例讲述了php实现根据字符串生成对应数组的方法,是比较实用的技巧。分享给大家供大家参考。具体方法如下:
先看看如下示例:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
|
<?php $config = array ( 'project|page|index' => 'content' , 'project|page|nav' => array ( array ( 'image' => '1.jpg' , 'name' => 'home' ), array ( 'image' => '2.jpg' , 'name' => 'about' ) ), 'project|page|open' => true ); ?> |
根据$config生成以下数组:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
|
<?php $result = array ( 'project' => array ( 'page' => array ( 'index' => 'content' , 'nav' => array ( array ( 'image' => '1.jpg' , 'name' => 'home' ), array ( 'image' => '2.jpg' , 'name' => 'about' ) ), 'open' => true ) ) ); ?> |
方法:使用eval实现:
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
|
<?php $config = array ( 'project|page|index' => 'content' , 'project|page|nav' => array ( array ( 'image' => '1.jpg' , 'name' => 'home' ), array ( 'image' => '2.jpg' , 'name' => 'about' ) ), 'project|page|open' => true ); $result = array (); foreach ( $config as $key => $val ){ $tmp = '' ; $keys = explode ( '|' , $key ); for ( $i =0, $len = count ( $keys ); $i < $len ; $i ++){ $tmp .= "['" . $keys [ $i ]. "']" ; } if ( is_array ( $val )){ eval ( '$result' . $tmp . '=' .var_export( $val ,true). ';' ); } elseif ( is_string ( $val )){ eval ( '$result' . $tmp . '=' . $val . ';' ); } else { eval ( '$result' . $tmp . '=$val;' ); } } print_r( $result ); ?> |
输出结果:
Array
(
[project] => Array
(
[ page ] => Array
(
[index] => content
[nav] => Array
(
[0] => Array
(
[image] => 1.jpg
[name] => home
)
[1] => Array
(
[image] => 2.jpg
[name] => about
)
)
[open] => 1
)
)
)
希望本文所述对大家PHP程序设计的学习有所帮助。