PHP 7.2警告: “Cannot change session name when session is active”

项目在php7.1 版本正常,迁移服务器php 7.2 报错

Maybe it's a warning but with Tracy I have an error.

To solve this I put session_write_close(); before session_set_cookie_params();. It's not a good fix but it's works

session_name() as well as session_set_cookie_params() are always nonesense if the session is already running.

翻译: session_name（）以及session_set_cookie_params（）总是不存在意义的,如果会话已在运行。

I had a similar problem but finally found a way through. The code below was my first approach that gave me errors.

  

   

    

     

    
    

     

      static function startmysession($lifetime, $path, $domain, $secure, $httponly){
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

          session_set_cookie_params($lifetime, $path, $domain, $secure, $httponly);
     
    
   

    

     

    
    

     

          session_regenerate_id(true);
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
    if(!isset($_SESSION)){
     
    
   

    

     

    
    

     

              session_start();
     
    
   

    

     

    
    

     

          }
     
    
   

    

     

    
    

     

      }
     
    
  
 

Now Earlier versions of php overlooked our mistake(We were practically renaming and giving a session that already exists properties which is very wrong. So how did i solve this problem?(现在php的早期版本忽略了我们的错误（我们实际上是在重命名和提供一个已经存在的会话属性，这是非常错误的）。那么我是如何解决这个问题的呢？)

  

   

    

     

    
    

     

      static function startmysession($lifetime, $path, $domain, $secure, $httponly){      
     
    
   

    

     

    
    

     
    if(!isset($_SESSION)){  
     
    
   

    

     

    
    

     

               session_set_cookie_params($lifetime, $path, $domain, $secure, $httponly);
     
    
   

    

     

    
    

     

               @session_regenerate_id(true);    
     
    
   

    

     

    
    

     

                   session_start();
     
    
   

    

     

    
    

     

               }    
     
    
   

    

     

    
    

     

          }
     
    
  
 

I now bound the session_set_cookie_params() just before session start and I test if the session already exists before doing so.(现在，我在会话开始之前绑定了会话session_set_cookie_params（），并在此之前测试会话是否已经存在。)

My solution:

Originally:

  

   

    

     

    
    

     
        $cookieParams = session_get_cookie_params();
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

              session_set_cookie_params(
     
    
   

    

     

    
    

     
            $seconds,
     
    
   

    

     

    
    

     
            $cookieParams['path'],
     
    
   

    

     

    
    

     
            $cookieParams['domain'],
     
    
   

    

     

    
    

     
            $cookieParams['secure']
     
    
   

    

     

    
    

     

                  );
     
    
  
 

Now:

  

   

    

     

    
    

     
        if(isset($_SESSION)) {
     
    
   

    

     

    
    

     
            if ($seconds != 0) {
     
    
   

    

     

    
    

     

                      setcookie(session_name(), session_id(), time() + $seconds);
     
    
   

    

     

    
    

     

                  } else {
     
    
   

    

     

    
    

     

                      setcookie(session_name(), session_id(), $seconds);
     
    
   

    

     

    
    

     

                  }
     
    
   

    

     

    
    

     

              } else {
     
    
   

    

     

    
    

     

                  $cookieParams = session_get_cookie_params();
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

                  session_set_cookie_params(
     
    
   

    

     

    
    

     

                      $seconds,
     
    
   

    

     

    
    

     

                      $cookieParams['path'],
     
    
   

    

     

    
    

     

                      $cookieParams['domain'],
     
    
   

    

     

    
    

     

                      $cookieParams['secure']
     
    
   

    

     

    
    

     

                  );
     
    
   

    

     

    
    

     

              }
     
    
  
 

参考:PHP 7.2 Warning: "Cannot change session name when session is active" - Stack Overflow

文章来源: blog.csdn.net，作者：lxw1844912514，版权归原作者所有，如需转载，请联系作者。

原文链接：blog.csdn.net/lxw1844912514/article/details/115113162