mod_rewrite的有数目不详的变量 [英] mod_rewrite with an unknown number of variables

问题描述

我试图使用mod_rewrite来处理数目不详的变量。

I'm trying to use mod_rewrite to handle an unknown number of variables.

这是例子网址是：

example.com/var1-var2-var3/title

example.com/var1-var2-var3/title

我有这个至今：

RewriteRule ^([^/.]+)-([^/]*)(.*)$ $3?version[]=$1&version[]=$2 [QSA,N]
RewriteRule ^([^/.]+)/?$ ?title=$1 [QSA,N]
RewriteRule ^/?$ /index.php [QSA,L]

这将返回： 阵列（[标题] =>标题[版本] =>阵列（[0] => VAR1，VAR2 [1] => VAR3））

This returns: Array ( [title] => title [version] => Array ( [0] => var1-var2 [1] => var3 ) )

我需要它返回：阵列（[标题] =>标题[版本] =>阵列（[0] => VAR1 [1] => VAR2 [2] => VAR3））

I need it to return: Array ( [title] => title [version] => Array ( [0] => var1 [1] => var2 [2] => var3 ) )

推荐答案

我不认为你可以捕获在一个重写规则的正则表达式的参数任意数量。那岂不是更容易地重定向到的index.php？版本= VAR-VAR2-VAR3 然后在PHP做了一个爆炸（）在 $ _ POST ['版本'] ？

I don't think you can capture an arbitrary number of arguments in a single RewriteRule regex. Wouldn't it be easier to redirect to index.php?version=var-var2-var3 then in PHP do an explode() on $_POST['version']?

编辑：：您可以做到这一点对瓦尔有限数量（9，我相信最大的捕获子组），然后取出多余的空项。梅西耶那么简单的爆炸（）替代在我看来，但在这里你去：

You can do it for a bounded number of vars (9 is the maximum captured subgroups I believe) and then remove redundant empty entries. Messier then the simple explode() alternative in my opinion, but here you go:

# Convert up to 8 arguments.
RewriteRule ^/([^-]+)-(?:([^-]+)-)?(?:([^-]+)-)?(?:([^-]+)-)?(?:([^-]+)-)?(?:([^-]+)-)?(?:([^-]+)-)?(?:([^-]+)-)?/(.*)$ index.php?t=$9&v[]=$1&v[]=$2&v[]=$3&v[]=$4&v[]=$5&v[]=$6&v[]=$7&v[]=$8
# Strip empty ones.
RewriteRule [?&]v\[\]=$ "" [N]

您也可以做一个复杂的回路通过重写引擎的每次运行移动一个变种成新的格式，并继续运行，直到你用完的VAR的，但我认为这比重写引擎应该负责的URL为

You can also do a complicated loop by moving one var to the new format on each run of the rewriting engine and go on running it until you run out of vars, but I think that's more than a URL rewriting engine should be responsible for.

编辑2：确定，这里是我提到的循环：

EDIT 2: Ok, here's the loop I mentioned:

RewriteEngine on
RewriteRule ^(.*)/([^/]+)$ $1&page=$2 [L]
RewriteRule ^([^-]+)-(.*)?$ $2&v[]=$1 [L]
RewriteRule ^(?!index\.php)([^-]+)$ /index.php?v[]=$1 [L]

据变换的样本网址如下：

It transform a sample URL as follows:

var1-var2-var3/title                             <-- Original
var1-var2-var3&page=title
var2-var3&page=title&v[]=var1
var3&page=title&v[]=var1&v[]=var2
index.php?v[]=var3&page=title&v[]=var1&v[]=var2  <-- Final

这篇关于mod_rewrite的有数目不详的变量的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！