1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
|
<?php /** @file */
namespace Zotlabs\Lib;
/**
* cache api
*/
class Cache {
public static function get($key) {
$hash = hash('whirlpool',$key);
$r = q("SELECT v FROM cache WHERE k = '%s' AND updated > %s - INTERVAL %s LIMIT 1",
dbesc($hash),
db_utcnow(),
db_quoteinterval(get_config('system','object_cache_days', '7') . ' DAY')
);
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")));
}
}
|
