如何设置JVM的最大内存使用量？(How to set the maximum memory usage for JVM?)

 最好的方法是JSON序列化。 它是人类可读的，您将获得更好的性能（文件加载/保存更小更快）。 代码很简单。 只有两个功能 
 
 
 
 json_encode 
 
 
 json_decode 
 
 
 示例代码： 
 
$arr1 = array ('a'=>1,'b'=>2,'c'=>3,'d'=>4,'e'=>5);
file_put_contents("array.json",json_encode($arr1));
# array.json => {"a":1,"b":2,"c":3,"d":4,"e":5}
$arr2 = json_decode(file_get_contents('array.json'), true);
$arr1 === $arr2 # => true
 
 您可以使用此示例轻松编写自己的store_array和restore_array函数。 
 
 对于速度比较，请参阅基本原理从首选方法存储PHP数组（json_encode vs serialize） 。 

The best way to do this is JSON serializing. It is human readable and you'll get better performance (file is smaller and faster to load/save). The code is very easy. Just two functions
 
 
 
json_encode
 
 
json_decode
 
 
Example code:
 
$arr1 = array ('a'=>1,'b'=>2,'c'=>3,'d'=>4,'e'=>5);
file_put_contents("array.json",json_encode($arr1));
# array.json => {"a":1,"b":2,"c":3,"d":4,"e":5}
$arr2 = json_decode(file_get_contents('array.json'), true);
$arr1 === $arr2 # => true
 
You can write your own store_array and restore_array functions easily with this example.
 
For speed comparison see benchmark originally from Preferred method to store PHP arrays (json_encode vs serialize).