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首页 > 资讯列表 > 编程/数据库 >> PHP

php根据字符串生成对应数组的方法

PHP 2014-12-14 00:36:07 转载来源: 网络整理/侵权必删

本文是一个php实现可以根据指定字符串生成对应数组的方法,包含了数组操作的技巧及eval函数的用法,需要的朋友可以学习下   如下示例： <?php $config = array( 'project|page|index' => 'content', 'project|page|nav' => array( array( 'image' => '1.jpg', 'name' => 'home' ), array( 'image' => '2

本文是一个php实现可以根据指定字符串生成对应数组的方法,包含了数组操作的技巧及eval函数的用法,需要的朋友可以学习下

 

如下示例：

<?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：

<?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：

<?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
)
)
)

 

 


标签: php 根据 字符串 生成 对应 数组 方法


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