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php实现根据字符串生成对应数组的方法_php技巧

WBOY
WBOYOriginal
2016-05-16 20:36:06821browse

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。

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