Home  >  Article  >  Backend Development  >  php实现根据字符串生成对应数组的方法_PHP

php实现根据字符串生成对应数组的方法_PHP

WBOY
WBOYOriginal
2016-05-31 19:29:381074browse

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:

<&#63;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 
); 
&#63;>

根据$config生成以下数组:

<&#63;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 
 ) 
 ) 
); 
&#63;> 

方法:使用eval实现:

<&#63;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); 
 
&#63;> 

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。

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