對象在會話中：致命錯誤：例外在未知無需堆棧幀拋出在線0

Question

session_start(); 
$_SESSION['dbo'] = NEW PDO('sqlite:database.db3'); 

給出：

Fatal error: Exception thrown without a stack frame in Unknown on line 0

但把它到普通可變沒有給出錯誤。我所要做的就是將對象放入會話中，以便初始化一次。

Answer 1

某些對象無法序列化並存儲在$_SESSION中。

如果您的目的是在會話中存儲數據庫連接以供重用，請不要遵循該承諾：它不起作用。

從PHP reference on serialize：

[...] serialize() handles all types, except the resource-type. You can even serialize() arrays that contain references to itself. Circular references inside the array/object you are serializing will also be stored. Any other reference will be lost.