|
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
|
实例：
1，http:
//localhost/aaa/ (打开aaa中的index.php)
结果：
$_SERVER
[
'QUERY_STRING'
] =
""
;
$_SERVER
[
'REQUEST_URI'
] =
"/aaa/"
;
$_SERVER
[
'SCRIPT_NAME'
] =
"/aaa/index.php"
;
$_SERVER
[
'PHP_SELF'
] =
"/aaa/index.php"
;
2，http:
//localhost/aaa/?p=222 (附带查询)
结果：
$_SERVER
[
'QUERY_STRING'
] =
"p=222"
;
$_SERVER
[
'REQUEST_URI'
] =
"/aaa/?p=222"
;
$_SERVER
[
'SCRIPT_NAME'
] =
"/aaa/index.php"
;
$_SERVER
[
'PHP_SELF'
] =
"/aaa/index.php"
;
3，http:
//localhost/aaa/index.php?p=222&q=333
结果：
$_SERVER
[
'QUERY_STRING'
] =
"p=222&q=333"
;
$_SERVER
[
'REQUEST_URI'
] =
"/aaa/index.php?p=222&q=333"
;
$_SERVER
[
'SCRIPT_NAME'
] =
"/aaa/index.php"
;
$_SERVER
[
'PHP_SELF'
] =
"/aaa/index.php"
;
由实例可知：
$_SERVER
[
"QUERY_STRING"
] 获取查询 语句，实例中可知，获取的是?后面的值
$_SERVER
[
"REQUEST_URI"
] 获取 http:
//localhost 后面的值，包括/
$_SERVER
[
"SCRIPT_NAME"
] 获取当前脚本的路径，如：index.php
$_SERVER
[
"PHP_SELF"
] 当前正在执行脚本的文件名
$_SERVER
[
'REQUEST_URI'
]和
$_SERVER
[
"HTTP_X_REWRITE_URL"
]的区别
http:
//www.hujuntao.com/web/php/difference-between-server-request-uri-and-server-http_x_rewrite_url.html
WordPress通过301重定向实现非首先域（非www）跳转向本来是一个很简单事情，由于没弄清楚
$_SERVER
[
'HTTP_X_REWRITE_URL'
] 和
$_SERVER
[
'REQUEST_URI'
]的区别导致了循环重定向问题。
现在来具体研究下
$_SERVER
[
'HTTP_X_REWRITE_URL'
] 和
$_SERVER
[
'REQUEST_URI'
]的区别
首先要纠正一部分的观点就是IIS+PHP不支持
$_SERVER
[
'REQUEST_URI'
]
不是，不支持是PHP Version 版本的问题，php4.4.0不支持
$_SERVER
[
'REQUEST_URI'
]，php5.2.5则增加了支持；
$_SERVER
[
'REQUEST_URI'
]常用来获当前URL
例如：http:
//www.hujuntao.com/index.php?p=3
$_SERVER
[
'REQUEST_URI'
]获得的就是/index.php?p=3这部分
。
$_SERVER
[
"HTTP_X_REWRITE_URL"
]则在IIS下获得的是当前URL,在apache下的值为空
例如：
当前URL:http:
//www.hujuntao.com/
IIS环境下：
$_SERVER
[
'REQUEST_URI'
] = /index.php
$_SERVER
[
"HTTP_X_REWRITE_URL"
] =/
apache环境下：
$_SERVER
[
'REQUEST_URI'
] = /
$_SERVER
[
"HTTP_X_REWRITE_URL"
] =”
当前URL：http:
//www.hujuntao.com/index.php
IIS环境下：
$_SERVER
[
'REQUEST_URI'
] = /index.php
$_SERVER
[
"HTTP_X_REWRITE_URL"
] =/index.php
apache环境下：
$_SERVER
[
'REQUEST_URI'
] = /index.php
$_SERVER
[
"HTTP_X_REWRITE_URL"
] =”
|
本文转自 IT阿飞 51CTO博客，原文链接:http://blog.51cto.com/itafei/1867675
