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<?php /** @file */
namespace Zotlabs\Lib;
/**
* cache api
*/
class Cache {
public static function get($key) {
$hash = hash('whirlpool',$key);
$r = q("SELECT v FROM cache WHERE k = '%s' limit 1",
dbesc($hash)
);
if ($r)
return $r[0]['v'];
return null;
}
public static function set($key,$value) {
$hash = hash('whirlpool',$key);
$r = q("SELECT * FROM cache WHERE k = '%s' limit 1",
dbesc($hash)
);
if($r) {
q("UPDATE cache SET v = '%s', updated = '%s' WHERE k = '%s'",
dbesc($value),
dbesc(datetime_convert()),
dbesc($hash));
}
else {
q("INSERT INTO cache ( k, v, updated) VALUES ('%s','%s','%s')",
dbesc($hash),
dbesc($value),
dbesc(datetime_convert()));
}
}
public static function clear() {
q("DELETE FROM cache WHERE updated < '%s'",
dbesc(datetime_convert('UTC','UTC',"now - 30 days")));
}
}
|
