在使用PHP框架(CI/TP)搭建项目时, 我们经常使用 Nginx / Apache 的URL Rewrite模块实现伪静态。例如, 访问URL: 同时我们也可以通过访：访问，打开的页面是一模一样的。在Nginx设置如下URL Rewrite规则就可以实现:
rewrite ^/(.*)$ /index.php?$1 last;
除了伪静态URL外，我们还可以通过其他几种URL模式访问。例如CI框架：
CI框架
CI框架中可选三种URL 模式，在application/config/config.php可以定义:
/* |-------------------------------------------------------------------------- | URI PROTOCOL |-------------------------------------------------------------------------- | | This item determines which server global should be used to retrieve the | URI string. The default setting of 'REQUEST_URI' works for most servers. | If your links do not seem to work, try one of the other delicious flavors: | | 'REQUEST_URI' Uses $_SERVER['REQUEST_URI'] | 'QUERY_STRING' Uses $_SERVER['QUERY_STRING'] | 'PATH_INFO' Uses $_SERVER['PATH_INFO'] | | WARNING: If you set this to 'PATH_INFO', URIs will always be URL-decoded! */ $config['uri_protocol'] = 'REQUEST_URI';
1.REQUEST_URI
REQUEST_URI模式是CI框架默认URL模式，采用分析$_SERVER[‘REQUEST_URI’]来区分控制器/动作/参数。例如： var =value
$_SERVER[‘REQUEST_URI’]值： index.php?/user/login?var=value
实现代码如下：
$uri = parse_url('
$query = isset($uri['query']) ? $uri['query'] : '';
$uri = isset($uri['path']) ? $uri['path'] : '';
if (isset($_SERVER['SCRIPT_NAME'][0]))
{
if (strpos($uri, $_SERVER['SCRIPT_NAME']) === 0)
{
$uri = (string) substr($uri, strlen($_SERVER['SCRIPT_NAME']));
}
elseif (strpos($uri, dirname($_SERVER['SCRIPT_NAME'])) === 0)
{
$uri = (string) substr($uri, strlen(dirname($_SERVER['SCRIPT_NAME'])));
}
}
// This section ensures that even on servers that require the URI to be in the query string (Nginx) a correct
// URI is found, and also fixes the QUERY_STRING server var and $_GET array.
if (trim($uri, '/') === '' && strncmp($query, '/', 1) === 0)
{
$query = explode('?', $query, 2);
$uri = $query[0];
$_SERVER['QUERY_STRING'] = isset($query[1]) ? $query[1] : '';
}
else
{
$_SERVER['QUERY_STRING'] = $query;
}
parse_str($_SERVER['QUERY_STRING'], $_GET);
在 REQUEST_URI 模式的基础上添加了重写规则的支持，可以去掉URL 地址 里面的入口文件index.php
<IfModule mod_rewrite.c>
RewriteEngine on
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-f
ewriteRule ^(.*)$ index.php/$1 [L]
</IfModule>
这样，就可以直接访问：
2.QUERY_STRING
QUERT_STRING 模式就是传统GET传参数来指定当前访问的模块和操作，例如： `
c参数表示控制器，m参数表示控制器方法（这些参数都是可以配置的），后面的表示其他GET参数。
3.PATH_INFO
PATHINFO模式下的URL访问地址是：
Apache默认支持PATH_INFO, Nginx则需要改造一下：
location ~ ^(.+\.php)(.*)$ {
fastcgi_pass 127.0.0.1:9000;
fastcgi_index index.php;
fastcgi_split_path_info ^(.+\.php)(.*)$;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
fastcgi_param PATH_INFO $fastcgi_path_info;
include fastcgi_params;
}
PATHINFO安全漏洞： (此漏洞已经修复，访问会出现Access denied)
TP
TP(3.2)框架中可以选择四种URL模式。
1.普通模式
普通模式 也就是传统的GET传参方式来指定当前访问的模块和操作，例如：
m参数表示模块，c参数表示控制器，a参数表示操作（当然这些参数都是可以配置的），后面的表示其他GET参数。
如果默认的变量设置和你的应用变量有冲突的话，你需要重新设置系统配置，例如改成下面的：
'VAR_MODULE' => 'module', // 默认模块获取变量 'VAR_CONTROLLER' => 'controller', // 默认控制器获取变量 'VAR_ACTION' => 'action', // 默认操作获取变量
上面的访问地址则变成：
2.PATHINFO模式
PATHINFO模式 是TP3.2默认URL模式，PATHINFO模式下面的URL访问地址是：
PATHINFO地址的前三个参数分别表示模块/控制器/操作
3.REWRITE模式
REWRITE模式 是在PATHINFO模式的基础上添加了重写规则的支持，可以去掉URL地址里面的入口文件index.php，但是需要额外配置WEB服务器的重写规则。
<IfModule mod_rewrite.c>
RewriteEngine on
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^(.*)$ index.php/$1 [L]
</IfModule>
接下来，就可以用下面的URL地址访问了：
4.兼容模式
兼容模式 是用于不支持PATHINFO的特殊环境，URL地址是：
兼容模式配合Web服务器重写规则的定义，可以达到和REWRITE模式一样的URL效果。
<IfModule mod_rewrite.c>
RewriteEngine on
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^(.*)$ index.php?s=/$1 [QSA,PT,L]
</IfModule>
就可以和REWRITE模式一样访问下面的URL地址访问了：
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