|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
namespace Vectorface\Cache; |
|
4
|
|
|
|
|
5
|
|
|
use Vectorface\Cache\Common\PSR16Util; |
|
6
|
|
|
use Vectorface\Cache\Common\MultipleTrait; |
|
7
|
|
|
|
|
8
|
|
|
/** |
|
9
|
|
|
* A cache implementation using an internal PHP associative array. |
|
10
|
|
|
* |
|
11
|
|
|
* This cache is very fast, but volatile: cache is only maintained while the PHP interpreter is running. |
|
12
|
|
|
* Usually, this means one HTTP request. |
|
13
|
|
|
* |
|
14
|
|
|
* Capable of a huge number of requests/second |
|
15
|
|
|
*/ |
|
16
|
|
|
class PHPCache implements Cache, AtomicCounter |
|
17
|
|
|
{ |
|
18
|
|
|
use MultipleTrait, PSR16Util; |
|
19
|
|
|
|
|
20
|
|
|
/** |
|
21
|
|
|
* The "cache" which stores entries for the lifetime of the request. |
|
22
|
|
|
* |
|
23
|
|
|
* Each entry is an [expiry, value] pair, where expiry is a timestamp. |
|
24
|
|
|
* |
|
25
|
|
|
* @var mixed[] |
|
26
|
|
|
*/ |
|
27
|
|
|
protected $cache = []; |
|
28
|
|
|
|
|
29
|
|
|
/** |
|
30
|
|
|
* @inheritDoc |
|
31
|
|
|
*/ |
|
32
|
22 |
|
public function get($key, $default = null) |
|
33
|
|
|
{ |
|
34
|
22 |
|
$key = $this->key($key); |
|
35
|
20 |
|
if (isset($this->cache[$key])) { |
|
36
|
11 |
|
list($expires, $value) = $this->cache[$key]; |
|
37
|
11 |
|
if (!$expires || ($expires >= microtime(true))) { |
|
38
|
10 |
|
return $value; |
|
39
|
|
|
} |
|
40
|
1 |
|
unset($this->cache[$key]); |
|
41
|
|
|
} |
|
42
|
20 |
|
return $default; |
|
43
|
|
|
} |
|
44
|
|
|
|
|
45
|
|
|
/** |
|
46
|
|
|
* @inheritDoc |
|
47
|
|
|
*/ |
|
48
|
22 |
|
public function set($key, $value, $ttl = null) |
|
49
|
|
|
{ |
|
50
|
|
|
/* Cache gets a microtime expiry date. */ |
|
51
|
22 |
|
$ttl = $this->ttl($ttl); |
|
52
|
22 |
|
$this->cache[$this->key($key)] = [ |
|
53
|
21 |
|
$ttl ? ((int)$ttl + microtime(true)) : false, |
|
54
|
21 |
|
$value |
|
55
|
|
|
]; |
|
56
|
21 |
|
return true; |
|
57
|
|
|
} |
|
58
|
|
|
|
|
59
|
|
|
/** |
|
60
|
|
|
* @inheritDoc |
|
61
|
|
|
*/ |
|
62
|
6 |
|
public function delete($key) |
|
63
|
|
|
{ |
|
64
|
6 |
|
unset($this->cache[$this->key($key)]); |
|
65
|
6 |
|
return true; |
|
66
|
|
|
} |
|
67
|
|
|
|
|
68
|
|
|
/** |
|
69
|
|
|
* @inheritDoc |
|
70
|
|
|
*/ |
|
71
|
3 |
|
public function clean() |
|
72
|
|
|
{ |
|
73
|
3 |
|
foreach ($this->cache as $key => $value) { |
|
74
|
2 |
|
list($expires) = $value; |
|
75
|
2 |
|
if ($expires && ($expires < microtime(true))) { |
|
76
|
1 |
|
unset($this->cache[$key]); |
|
77
|
|
|
} |
|
78
|
|
|
} |
|
79
|
3 |
|
return true; |
|
80
|
|
|
} |
|
81
|
|
|
|
|
82
|
|
|
/** |
|
83
|
|
|
* @inheritDoc |
|
84
|
|
|
*/ |
|
85
|
7 |
|
public function flush() |
|
86
|
|
|
{ |
|
87
|
7 |
|
$this->cache = []; |
|
88
|
7 |
|
return true; |
|
89
|
|
|
} |
|
90
|
|
|
|
|
91
|
|
|
/** |
|
92
|
|
|
* @inheritDoc |
|
93
|
|
|
*/ |
|
94
|
3 |
|
public function clear() |
|
95
|
|
|
{ |
|
96
|
3 |
|
return $this->flush(); |
|
97
|
|
|
} |
|
98
|
|
|
|
|
99
|
|
|
/** |
|
100
|
|
|
* @inheritDoc |
|
101
|
|
|
*/ |
|
102
|
2 |
|
public function has($key) |
|
103
|
|
|
{ |
|
104
|
2 |
|
return $this->get($this->key($key)) !== null; |
|
105
|
|
|
} |
|
106
|
|
|
|
|
107
|
|
|
/** |
|
108
|
|
|
* @inheritDoc |
|
109
|
|
|
*/ |
|
110
|
2 |
|
public function increment($key, $step = 1) |
|
111
|
|
|
{ |
|
112
|
2 |
|
$key = $this->key($key); |
|
113
|
2 |
|
$newValue = $this->get($key, 0) + $this->step($step); |
|
114
|
2 |
|
$result = $this->set($key, $newValue); |
|
115
|
2 |
|
return $result !== false ? $newValue : false; |
|
|
|
|
|
|
116
|
|
|
} |
|
117
|
|
|
|
|
118
|
|
|
/** |
|
119
|
|
|
* @inheritDoc |
|
120
|
|
|
*/ |
|
121
|
2 |
|
public function decrement($key, $step = 1) |
|
122
|
|
|
{ |
|
123
|
2 |
|
$key = $this->key($key); |
|
124
|
2 |
|
$newValue = $this->get($key, 0) - $this->step($step); |
|
125
|
2 |
|
$result = $this->set($key, $newValue); |
|
126
|
2 |
|
return $result !== false ? $newValue : false; |
|
|
|
|
|
|
127
|
|
|
} |
|
128
|
|
|
} |
|
129
|
|
|
|
Vectorface /
cache
Loading history...