PHP Redis Storage Session

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Redis is a high-performance Key-value database. The emergence of Redis, in some cases can be a good complement to the relational database. On the other hand, in the session storage, there are also many people choose Redis. It is used to compensate for the speed and efficiency of file storage to achieve a higher availability.

Modify the settings for PHP.ini

 
  
  

  
   
   
Session .  =  redis
  
   
   
Session .  ="tcp://127.0.0.1:6379"
 
  
  

After modification, restart Php-fpm,phpinfo () to see if the session is stored in Redis.
If you do not want to modify php.ini, you can include it in your code:

 
  
  

  
   
   
Ini_set ("Session.save_handler","Redis");
  
   
   
Ini_set ("Session.save_path","tcp://127.0.0.1:6379");
 
  
  

If redis.conf has the connection password set ( requirePASS), the session Save_path need to be modified to: tcp://127.0.0.1:6379?auth= requireThe value of the pass.
If you choose a Redis database, Session.save_path = "tcp://xx.xx.xx.xx:6789?database=11", and so forth.
To view the value of the Redis storage session:

 
  
  
 
   
   
 !--?  php   
  
   
   
  session_start   ();  
 
   
   
  $_session   [  ' SessionID '  ]   =   ' Www.webyang.net '  ;  
  
   
   
   
 
   
   
  $redis   =   new   redis   ();  
 
   
   
  $redis  ->   connect   (  ' 127.0.0.1 '  ,   6379  );  
  
   
   
 //redis uses phpredis_session: Add session_id as key, and is stored as string  
 
   
   
  echo $redis  ->   get   (  ' phpredis_session: '  .   session_id   ());  //Output www.webyang.net  
 
   
   
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There is a question on the Internet that the Redis storage session value will have concurrency consistency (file store session with file lock to handle), this block does not study.
Linux installation Redis service and PHP redis extension: www.webyang.net/Html/web/article_174.html

The above describes the PHP Redis storage session, including the require aspects of the content, I hope the PHP tutorial interested in a friend helpful.

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