StackOverflow2013

Note that there are some explanatory texts on larger screens.

plurals

PO
primarykey
Id
10766074
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
CommentCount
6
CommunityOwnedDate
CreationDate
2012-05-26T12:07:28.893
FavoriteCount
0
LastActivityDate
2012-05-26T13:04:11.033
LastEditDate
2012-05-26T13:04:11.033
LastEditorUserId
661872
OwnerUserId
661872
ParentId
10765818
PostTypeId
2
Score
1
ViewCount
0
LastEditorDisplayName
text
Body
Heres a solution ive just put together, instead of using a file based cache use a database, PDO sqlite (This way its easy just to delete the cache file database to clear all cache). Look towards the bottom you can see how it works, it will delete the row after 50 hits and redirect so it can generate a new copy. Hope it helps sqlite.cache.class.php <pre><code><?php /** * PDO sqlite cache class * You can include('sqlite.cache.class.php'); this class */ class sqlite_cache{ private $db; function __construct($dsn){ $this->dsn = $dsn; $this->chkSetup(); } /*Singleton Connect*/ private function connect(){ if (!$this->db instanceof PDO){ $this->db = new PDO($this->dsn); $this->db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); } } /*Raw Select*/ public function rawSelect($sql){ $this->connect(); return $this->db->query($sql)->fetchAll(PDO::FETCH_ASSOC); } public function get($fieldname=null, $id=null){ $this->connect(); $sql = "SELECT * FROM cache WHERE $fieldname = :id"; $statement = $this->db->prepare($sql); $statement->bindParam(':id', $id, PDO::PARAM_STR); $statement->execute(); return $statement->fetchAll(PDO::FETCH_ASSOC); } /*Insert*/ public function put($values){ $this->connect(); $fieldnames = array_keys($values[0]); $sql = "INSERT INTO cache "; $fields = '('.implode(' ,', $fieldnames).')'; $bound = '(:'.implode(', :', $fieldnames).')'; $sql .= $fields.' VALUES '.$bound; $statement = $this->db->prepare($sql); foreach($values as $vals){ $statement->execute($vals); } } /*Update*/ public function update($fieldname, $value, $pk, $id){ $this->connect(); $sql = "UPDATE cache SET $fieldname = :value WHERE $pk = :id"; $statement = $this->db->prepare($sql); $statement->bindParam(':id', $id, PDO::PARAM_STR); $statement->bindParam(':value', $value, PDO::PARAM_STR); $statement->execute(); } /*Update Hits*/ public function add_hit($id){ $this->connect(); $sql = "UPDATE cache SET hits = hits + 1 WHERE url = :id"; $statement = $this->db->prepare($sql); $statement->bindParam(':id', $id, PDO::PARAM_STR); $statement->execute(); } /*Delete*/ public function delete($id){ $this->connect(); $sql = "DELETE FROM cache WHERE url = :id"; $statement = $this->db->prepare($sql); $statement->bindParam(':id', $id, PDO::PARAM_STR); $statement->execute(); } /*Database Setup*/ private function chkSetup(){ $dso = explode(':',$this->dsn); if(file_exists($dso[1])){ return; }else{ $this->connect(); //Create Table $sql ="CREATE TABLE cache (id INTEGER PRIMARY KEY, title TEXT, url TEXT, hits INTEGER, date INTEGER, contents TEXT)"; $this->db->query($sql); header("refresh:0;url=./"); die; } } } ?> </code></pre> index.php <pre><code><?php include('sqlite.cache.class.php'); $cache = new sqlite_cache('sqlite:./cache.db'); //Check if cache exists $cache_result = $cache->get('url',$_SERVER['REQUEST_URI']); //Exists if(!empty($cache_result)){ //Add Hit $cache->add_hit($_SERVER['REQUEST_URI']); //Delete If over 50 hits if($cache_result[0]['hits']>=50){ $cache->delete($_SERVER['REQUEST_URI']); header('Location: '.$_SERVER['REQUEST_URI']); die; } echo $cache_result[0]['contents']; }else{ //Generate your page contents ect ob_start(); /////////////////////////////// //Your script code goes here /////////////////////////////// echo 'Your content'; //End your script code///////// /////////////////////////////// $return = ob_get_contents(); ob_end_clean(); //Before output build values to put in cache $cache_contents = array(array('id'=>NULL, 'title'=>'Page Title', 'url'=>$_SERVER['REQUEST_URI'], 'hits'=>'0', 'date'=>time(), 'contents'=>$return)); //Store cache $cache->put($cache_contents); echo $return; } ?> </code></pre>
Tags
Title
singulars
PostAcceptedAnswerId
1. This table or related slice is empty.
PostParentId
1. POphp cache expire in every certain number of page view
 singulars
 PostTypePostTypeId
 PTQuestion
PostTypePostTypeId
1. PTAnswer
UserLastEditorUserId
1. USLawrence Cherone
UserOwnerUserId
1. USLawrence Cherone
plurals
PostLinksPostIdRelatedPostId
1. This table or related slice is empty.
PostLinksRelatedPostIdPostId
1. This table or related slice is empty.
PostsAcceptedAnswerId
1. POphp cache expire in every certain number of page view
 singulars
 PostTypePostTypeId
 PTQuestion
PostsParentIdCreationDate
1. This table or related slice is empty.
VotesPostIdCreationDate
1. VO
 singulars
 PostPostId
 PO
 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTUpMod
2. VO
 singulars
 PostPostId
 PO
 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTAcceptedByOriginator
CommentsPostId

Querying!

Guidance

A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.