1
|
|
|
<?php |
2
|
|
|
/** |
3
|
|
|
* Class FileCache |
4
|
|
|
* |
5
|
|
|
* @link https://www.icy2003.com/ |
6
|
|
|
* @author icy2003 <[email protected]> |
7
|
|
|
* @copyright Copyright (c) 2019, icy2003 |
8
|
|
|
*/ |
9
|
|
|
|
10
|
|
|
namespace icy2003\php\icomponents\cache; |
11
|
|
|
|
12
|
|
|
use icy2003\php\I; |
13
|
|
|
use icy2003\php\icomponents\file\LocalFile; |
14
|
|
|
|
15
|
|
|
/** |
16
|
|
|
* 文件缓存 |
17
|
|
|
*/ |
18
|
|
|
class FileCache extends Base |
19
|
|
|
{ |
20
|
|
|
|
21
|
|
|
/** |
22
|
|
|
* 文件缓存根目录 |
23
|
|
|
* |
24
|
|
|
* @var string |
25
|
|
|
*/ |
26
|
|
|
protected $_pathRoot; |
27
|
|
|
/** |
28
|
|
|
* 文件缓存目录层级 |
29
|
|
|
* |
30
|
|
|
* @var int |
31
|
|
|
*/ |
32
|
|
|
protected $_directoryLevel = 1; |
33
|
|
|
/** |
34
|
|
|
* 缓存后缀 |
35
|
|
|
* |
36
|
|
|
* @var string |
37
|
|
|
*/ |
38
|
|
|
protected $_cacheFileSuffix = '.bin'; |
39
|
|
|
/** |
40
|
|
|
* 目录权限 |
41
|
|
|
* |
42
|
|
|
* @var int |
43
|
|
|
*/ |
44
|
|
|
protected $_dirMode = 0775; |
45
|
|
|
/** |
46
|
|
|
* 文件权限 |
47
|
|
|
* |
48
|
|
|
* @var int |
49
|
|
|
*/ |
50
|
|
|
protected $_fileMode; |
51
|
|
|
|
52
|
|
|
/** |
53
|
|
|
* 构造函数 |
54
|
|
|
* |
55
|
|
|
* @param string $pathRoot 缓存根目录 |
56
|
|
|
*/ |
57
|
|
|
public function __construct($pathRoot = null) |
58
|
|
|
{ |
59
|
|
|
if (null === $pathRoot) { |
60
|
|
|
$this->_pathRoot = (string)I::getAlias('@icy2003/php_runtime/cache'); |
61
|
|
|
} else { |
62
|
|
|
$this->_pathRoot = $pathRoot; |
63
|
|
|
} |
64
|
|
|
$local = new LocalFile(); |
65
|
|
|
$local->isFile($this->_pathRoot) || $local->createDir($this->_pathRoot); |
66
|
|
|
} |
67
|
|
|
|
68
|
|
|
/** |
69
|
|
|
* 设置一个缓存 |
70
|
|
|
* |
71
|
|
|
* @param string $key 缓存键 |
72
|
|
|
* @param mixed $value 缓存值 |
73
|
|
|
* @param int $duration 有效期,默认 0,表示永久 |
74
|
|
|
* |
75
|
|
|
* @return boolean |
76
|
|
|
*/ |
77
|
|
|
public function set($key, $value, $duration = 0) |
78
|
|
|
{ |
79
|
|
|
$value = serialize($value); |
80
|
|
|
$fullKey = $this->buildKey($key); |
81
|
|
|
return $this->_setValue($fullKey, $value, $duration); |
82
|
|
|
} |
83
|
|
|
|
84
|
|
|
/** |
85
|
|
|
* 获取一个缓存 |
86
|
|
|
* |
87
|
|
|
* @param string $key 缓存键 |
88
|
|
|
* |
89
|
|
|
* @return mixed |
90
|
|
|
*/ |
91
|
|
|
public function get($key) |
92
|
|
|
{ |
93
|
|
|
$fullKey = $this->buildKey($key); |
94
|
|
|
$value = $this->_getValue($fullKey); |
95
|
|
|
return false === $value ? false : unserialize($value); |
96
|
|
|
} |
97
|
|
|
|
98
|
|
|
/** |
99
|
|
|
* 删除一个缓存 |
100
|
|
|
* |
101
|
|
|
* @param string $key 缓存键 |
102
|
|
|
* |
103
|
|
|
* @return boolean |
104
|
|
|
*/ |
105
|
|
|
public function delete($key) |
106
|
|
|
{ |
107
|
|
|
$fullKey = $this->buildKey($key); |
108
|
|
|
return $this->_deleteValue($fullKey); |
109
|
|
|
} |
110
|
|
|
|
111
|
|
|
/** |
112
|
|
|
* 创建一个 key |
113
|
|
|
* |
114
|
|
|
* @param string $key |
115
|
|
|
* |
116
|
|
|
* @return string |
117
|
|
|
*/ |
118
|
|
|
public function buildKey($key) |
119
|
|
|
{ |
120
|
|
|
return $this->_keyPrefix . md5($key); |
121
|
|
|
} |
122
|
|
|
|
123
|
|
|
/** |
124
|
|
|
* 设置一个缓存 |
125
|
|
|
* |
126
|
|
|
* @param string $fullKey 缓存键全名 |
127
|
|
|
* @param mixed $value 缓存值 |
128
|
|
|
* @param int $duration 有效期,默认 0,表示永久 |
129
|
|
|
* |
130
|
|
|
* @return boolean |
131
|
|
|
*/ |
132
|
|
|
protected function _setValue($fullKey, $value, $duration = 0) |
133
|
|
|
{ |
134
|
|
|
$cacheFile = $this->_getCacheFile($fullKey); |
135
|
|
|
$local = new LocalFile(); |
136
|
|
|
$dirname = $local->getDirname($cacheFile); |
137
|
|
|
$local->createDir($dirname, $this->_dirMode); |
138
|
|
|
if (false !== file_put_contents($cacheFile, $value, LOCK_EX)) { |
139
|
|
|
null !== $this->_fileMode && @chmod($cacheFile, $this->_fileMode); |
140
|
|
|
0 >= $duration && $duration = 3600 * 24 * 365 * 10; |
141
|
|
|
return @touch($cacheFile, $duration + time()); |
142
|
|
|
} else { |
143
|
|
|
return false; |
144
|
|
|
} |
145
|
|
|
} |
146
|
|
|
|
147
|
|
|
/** |
148
|
|
|
* 获取一个缓存 |
149
|
|
|
* |
150
|
|
|
* @param string $fullKey 缓存键全名 |
151
|
|
|
* |
152
|
|
|
* @return mixed |
153
|
|
|
*/ |
154
|
|
|
protected function _getValue($fullKey) |
155
|
|
|
{ |
156
|
|
|
$cacheFile = $this->_getCacheFile($fullKey); |
157
|
|
|
if ((new LocalFile())->isFile($cacheFile)) { |
158
|
|
|
if (filemtime($cacheFile) > time()) { |
159
|
|
|
return file_get_contents($cacheFile); |
160
|
|
|
} |
161
|
|
|
$this->_deleteValue($fullKey); |
162
|
|
|
} |
163
|
|
|
return false; |
164
|
|
|
} |
165
|
|
|
|
166
|
|
|
/** |
167
|
|
|
* 删除一个缓存 |
168
|
|
|
* |
169
|
|
|
* @param string $fullKey 缓存键全名 |
170
|
|
|
* |
171
|
|
|
* @return boolean |
172
|
|
|
*/ |
173
|
|
|
protected function _deleteValue($fullKey) |
174
|
|
|
{ |
175
|
|
|
$cacheFile = $this->_getCacheFile($fullKey); |
176
|
|
|
return (new LocalFile())->deleteFile($cacheFile); |
177
|
|
|
} |
178
|
|
|
|
179
|
|
|
/** |
180
|
|
|
* 获取缓存文件 |
181
|
|
|
* |
182
|
|
|
* @param string $fullKey 缓存键全名 |
183
|
|
|
* |
184
|
|
|
* @return string |
185
|
|
|
*/ |
186
|
|
|
protected function _getCacheFile($fullKey) |
187
|
|
|
{ |
188
|
|
|
if ($this->_directoryLevel > 0) { |
189
|
|
|
$base = $this->_pathRoot; |
190
|
|
|
for ($i = 0; $i < $this->_directoryLevel; ++$i) { |
191
|
|
|
if (false !== ($prefix = substr($fullKey, $i + $i, 2))) { |
192
|
|
|
$base .= DIRECTORY_SEPARATOR . $prefix; |
193
|
|
|
} |
194
|
|
|
} |
195
|
|
|
|
196
|
|
|
return $base . DIRECTORY_SEPARATOR . $fullKey . $this->_cacheFileSuffix; |
197
|
|
|
} else { |
198
|
|
|
return $this->_pathRoot . DIRECTORY_SEPARATOR . $fullKey . $this->_cacheFileSuffix; |
199
|
|
|
} |
200
|
|
|
} |
201
|
|
|
|
202
|
|
|
/** |
203
|
|
|
* 清空缓存 |
204
|
|
|
* |
205
|
|
|
* @return boolean |
206
|
|
|
*/ |
207
|
|
|
public function clear() |
208
|
|
|
{ |
209
|
|
|
return (new LocalFile())->deleteDir($this->_pathRoot, false); |
210
|
|
|
} |
211
|
|
|
} |
212
|
|
|
|