将PHP数组字符串转换为数组

Question

我有一个数组:

$myArray = array('key1'=>'value1', 'key2'=>'value2');

我把它保存为变量:

$fileContents = var_dump($myArray);

如何将变量转换回常规数组？

echo $fileContents[0]; //output: value1
echo $fileContents[1]; //output: value2

Answer 1

我想你可能想看看serialize和unserialize.

$myArray = array('key1'=>'value1', 'key2'=>'value2');
$serialized = serialize($myArray);
$myNewArray = unserialize($serialized);
print_r($myNewArray); // Array ( [key1] => value1 [key2] => value2 ) 

Answer 2

序列化可能是正确的答案 - 但我更喜欢使用JSON - 人类编辑数据将是可能的...

$myArray = array('key1'=>'value1', 'key2'=>'value2');
$serialized = json_encode($myArray);
$myNewArray = json_decode($serialized);
print_r($myNewArray); // Array ( [key1] => value1 [key2] => value2 )

Answer 3

尝试使用var_export生成有效的PHP语法,将其写入文件,然后"包含"该文件:

$myArray = array('key1'=>'value1', 'key2'=>'value2');
$fileContents = '<?php $myArray = '.var_export($myArray, true).'; ?>';

// ... after writing $fileContents to 'myFile.php'

include 'myFile.php';
echo $myArray['key1']; // Output: value1