Overview of ThinkPHP cache method S of

The F method of thinkPHP can only be used to cache simple data types and does not support expiration and caching objects.The S () caching method supports expiration dates, also known as dynamic caching, as shown in the following example:

//  Use data Identity Cache $Data data 

S('data',$Data);  // Cached data follows cached data 

//  cache $Data data 3600 second 

S('data',$Data,3600);

//  Delete Cached Data 

S('data',NULL);  // No. 1 Identification name of the cache for each parameter 

$cache=S($cachename);// Set Cache Label 

//  Determine if there is this query cache     

if(!$cache){  //$cache  Cached in ( Each query corresponds to 1 Cache   That is   Different queries have different caches )

    $cache=$video->where($map)->order($order)->limit($limit)->select();

    foreach($cache as $key=>$value){

    $userlist=$user->where("id=".$value['user_id'])->find();

    $cache[$key]["nickname"]=$userlist['nickname'];

    }

    S($cachename,$cache,3600); // Set cache lifetime  

    }

    S($cachename,NULL); // Delete Cache 

More readers interested in thinkPHP-related content can view this site's topics: Introduction to ThinkPHP, Summary of thinkPHP Template Operation Skills, Summary of ThinkPHP Common Methods, Es23EN Template Introduction Basic Tutorial, and PHP Template Technology Summary.

I hope that the description in this paper will be helpful to everyone's PHP program design based on the ThinkPHP framework.