在PHP中模拟asp的response类
习惯了asp或是asp.net开发的人, 他们会经常用到response类,这个类用于处理客户端的相应,可以实现跳转,输出等功能. 在php中没有这个类,但是确实可以通过函数来模拟这个类.
|
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
|
/* * 作者: 雪狐博客 * 类用途: 实现类似于asp中的response功能 */ final class Response { private $headers = array(); private $output; private $level = 0; public function addHeader($key, $value) { $this->headers[$key] = $value; } public function removeHeader($key) { if (isset($this->headers[$key])) { unset($this->headers[$key]); } } public function redirect($url) { header('Location: ' . $url); exit; } public function setOutput($output, $level = 0) { $this->output = $output; $this->level = $level; } private function compress($data, $level = 0) { if (isset($_SERVER['HTTP_ACCEPT_ENCODING']) && (strpos($_SERVER['HTTP_ACCEPT_ENCODING'], 'gzip') !== FALSE)) { $encoding = 'gzip'; } if (isset($_SERVER['HTTP_ACCEPT_ENCODING']) && (strpos($_SERVER['HTTP_ACCEPT_ENCODING'], 'x-gzip') !== FALSE)) { $encoding = 'x-gzip'; } if (!isset($encoding)) { return $data; } if (!extension_loaded('zlib') || ini_get('zlib.output_compression')) { return $data; } if (headers_sent()) { return $data; } if (connection_status()) { return $data; } $this->addHeader('Content-Encoding', $encoding); return gzencode($data, (int)$level); } public function output() { if ($this->level) { $ouput = $this->compress($this->output, $this->level); } else { $ouput = $this->output; } if (!headers_sent()) { foreach ($this->headers as $key => $value) { header($key . ': ' . $value); } } echo $ouput; } } |