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Yii database cache instance analysis, yii database instance analysis_PHP tutorial
Yii database cache instance analysis, yii database instance analysis_PHP tutorial
Jul 12, 2016 am 08:55 AM
Yii database cache instance analysis, yii database instance analysis
The examples in this article describe the usage of Yii database cache. Share it with everyone for your reference, the details are as follows:
yii Operation database cache:
1. Add
to the main.php file'dbcache'=>array( 'class'=>'system.caching.CDbCache', //數(shù)據(jù)庫(kù)緩存,注意你自己的路徑問(wèn)題 ),
2. Set up database cache
Yii::app()->cache->set($key,$value,$outtime); //$key 唯一主鍵，$value 對(duì)應(yīng)主鍵的值(可以是數(shù)組), $outtime 過(guò)期時(shí)間。
3. Get cache
Yii::app()->cache->get($key); //設(shè)置數(shù)據(jù)庫(kù)緩存時(shí)的主鍵key
4. Delete cache
Yii::app()->cache->delete($key);//同上
5. Clear cache files
Yii::app()->cache->fulsh(); //將刪除服務(wù)器上面的所有文件緩存，即cache文件夾里面的所有緩存文件
Application examples: (Many videos are not given in the list page. If cached, the list page needs to have page information. It is a little more complicated. Here is a database cache example of the list page)
The current url address: http://www.aaaa.com/news/list/gid/2/nid/3/page/1.html
First determine whether the cache exists:
if(isset($_GET['gid'])){
$gid = intval($_GET['gid']);
}else{
$gid = 1;
}
..........
I have omitted other judgment conditions here. Currently, the only information that needs to be judged is $gid, $nid, $pages (note that the current variable does not use $page but $pages, because if $page is used, it will An error occurred, conflicting with $page in paging)
$newsListCache = Yii::app()->cache->get("newsList$gid$nid$pages");
//可以保證其唯一性即可
if(!empty($newsListCache))//判定如果有這個(gè)文件則走這個(gè)文件 下面return 了所以后面的數(shù)據(jù)就不會(huì)再走了
return $newsListCache;
。。。。。//這里就是你的其他代碼數(shù)據(jù)，不用管它
Yii::app()->cache->set("newsList$gid$nid$pages",$newsList,3600);//這里的第一個(gè)參數(shù)需要和上面的對(duì)應(yīng)，第二個(gè)參數(shù)就是你的數(shù)據(jù) ， 第三個(gè)參數(shù)就是過(guò)期時(shí)間。
Readers who are interested in more Yii-related content can check out the special topics on this site: "Introduction to Yii Framework and Summary of Common Techniques", "Summary of Excellent PHP Development Framework", "Basic Tutorial for Getting Started with Smarty Templates", "php Date and Time" Usage Summary", "php object-oriented programming introductory tutorial", "php string (string) usage summary", "php mysql database operation introductory tutorial" and "php common database operation skills summary"
I hope this article will be helpful to everyone’s PHP program design based on the Yii framework.
Articles you may be interested in:
- YII Framework filter usage analysis
- Introduction to some advanced usage of caching in PHP's Yii framework
- In-depth analysis of the caching function in PHP's Yii framework
- Advanced use of View in PHP's Yii framework
- Study tutorial on Model model in PHP's Yii framework
- Detailed explanation Controller controller in PHP's Yii framework
- Yii's method of turning on fragment caching
- Detailed explanation of attribute injection and method injection of component behavior in PHP's Yii framework
- Detailed explanation in PHP Methods of using Behaviors in Yii Framework
- YII Framework learning request and response usage (based on CHttpRequest response)
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