Template.php
3.1 KB
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
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006~2016 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------
namespace think\sae;
use think\Exception;
class Template
{
// mc 对象
private $mc;
// 编译缓存内容
private $contents = [];
/**
* 架构函数
* @access public
*/
public function __construct()
{
if (!function_exists('sae_debug')) {
throw new Exception('请在SAE平台上运行代码。');
}
$this->mc = new \Memcached();
if (!$this->mc) {
throw new Exception('您未开通Memcache服务，请在SAE管理平台初始化Memcache服务');
}
}
/**
* 写入编译缓存
* @param string $cacheFile 缓存的文件名
* @param string $content 缓存的内容
* @return void|array
*/
public function write($cacheFile, $content)
{
// 添加写入时间
$content = $_SERVER['REQUEST_TIME'] . $content;
if (!$this->mc->set($cacheFile, $content, 0)) {
throw new Exception('sae mc write error:' . $cacheFile);
} else {
$this->contents[$cacheFile] = $content;
return true;
}
}
/**
* 读取编译编译
* @param string $cacheFile 缓存的文件名
* @param array $vars 变量数组
* @return void
*/
public function read($cacheFile, $vars = [])
{
if (!empty($vars) && is_array($vars)) {
extract($vars, EXTR_OVERWRITE);
}
eval('?>' . $this->get($cacheFile, 'content'));
}
/**
* 检查编译缓存是否有效
* @param string $cacheFile 缓存的文件名
* @param int $cacheTime 缓存时间
* @return boolean
*/
public function check($cacheFile, $cacheTime)
{
$mtime = $this->get($cacheFile, 'mtime');
if (0 != $cacheTime && $_SERVER['REQUEST_TIME'] > $mtime + $cacheTime) {
// 缓存是否在有效期
return false;
}
return true;
}
/**
* 读取文件信息
* @access private
* @param string $filename 文件名
* @param string $name 信息名 mtime或者content
* @return boolean
*/
private function get($filename, $name)
{
if (!isset($this->contents[$filename])) {
$this->contents[$filename] = $this->mc->get($filename);
}
$content = $this->contents[$filename];
if (false === $content) {
return false;
}
$info = array(
'mtime' => substr($content, 0, 10),
'content' => substr($content, 10),
);
return $info[$name];
}
}