PHP性能：在Session中存储类对象与静态vs Globals

问题描述：

I've been looking for an answer on this, so far I have been unable to find an answer. My question is; What is the best way to store a huge global class that does not require any dynamic input, it only needs to be used once.

Lets take for example a template class:

<?php
class Design_API{
   function loadfile($file){
     //load file here
   }

   // do file manipulation here

   function presentfile(){
      echo($this->file);
   }

}
?>

Utilizing this class as a basic example of a layout. What would be the best way performance and security wise to use it. Would it be to create an instance of it as a global; store the instance in a session; or simply make it a static class.

Also, say we used a session if 2 clients access the site at the same exact millisecond, would php lock the session file forcing client 2's web load to take longer?

我一直在寻找答案，到目前为止我一直无法找到答案。我的问题是; 存储一个不需要任何动态输入的庞大全局类的最佳方法是什么，它只需要使用一次。 p>

让我们以模板类为例： p>

 ＆lt;？php 
class Design_API {
 function loadfile（$ file）{
 //在此处加载文件
} 
 
 //在此处进行文件操作
 \  n function presentfile（）{
 echo（$ this-＆gt; file）; 
} 
 
} 
？＆gt; 
  code>  pre> 
 
 利用这个 class作为布局的基本示例。 使用它的最佳方式是性能和安全性。 是否将它的实例创建为全局; 将实例存储在会话中; 或者简单地使它成为一个静态类。 p> 
 
 
另外，假设我们使用一个会话，如果2个客户端以相同的毫秒访问该站点，那么php会锁定会话文件，强制客户端2的web加载到 需要更长时间？ p> 
  div>

答

This question is a bit too mixed up to be answered in a consistent way, so here are some points:

one client does not block another, unless they're accessing a shared resource
sessions are not shared resources between different users, forget about this misconception
wherever you store objects hardly makes a difference in performance
it makes even less of a difference between different requests and users, since no resources are shared between requests
code what you mean first and what is most maintainable, optimize this for performance later when it is proven to be slow (which it likely won't be)
avoid globals wherever possible
don't store stuff in the session that does not belong there, like code
avoid static classes as much as possible, they cause code coupling, which should be reduced
static classes are not necessarily faster

答

The best way to handle this is to make the class a Singleton class and use the static method to instatiante it.

Storing the object in session will involve serialization and de-serialization which is very bad for performance. Also if you store any resources in the class they can't be serialized.

PHP性能：在Session中存储类对象与静态vs Globals

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