由网友(北岛孤鬼)分享简介：RewriteRule ^([a-z]).php$ /index.php?zig=$1 [NC,L] # working该规则是否正常工作。但This rule is working correctly. But RewriteRule ^([a-z]+).php$ /index.php?zig=$1 [NC,...

RewriteRule ^([a-z]).php$  /index.php?zig=$1 [NC,L] # working

该规则是否正常工作。但

This rule is working correctly. But

RewriteRule ^([a-z]+).php$  /index.php?zig=$1 [NC,L] # not working

或

RewriteRule ^([a-z]+).php$  /index.php?zig=$1 [NC,L] # not working

不工作。不同的是（ + ）。如何使用 + 在code以上？

Is not working. Difference is (+). How to use + in the code above?

推荐答案

这条规则是好的：

RewriteRule ^([a-z]+).php$  /index.php?zig=$1 [NC,L]

但会产生因为改写URI的无限循环的index.php 也匹配的正则表达式。为prevent这需要夫妻从此改写像preventing的文件/目录的变化和逃生点，因为它是一种特殊的正则表达式元字符：

but will create an infinite loop since rewritten URI /index.php also matches the regex pattern. To prevent this you need couple of changes like preventing files/directories from this rewrite and escape the dot as it is a special regex meta character:

# If the request is not for a valid directory
RewriteCond %{REQUEST_FILENAME} !-d
# If the request is not for a valid file
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^([a-z]+).php$ index.php?zig=$1 [QSA,NC,L]

QSA （查询字符串追加）标志preserves现有的查询参数，同时增加了新的。

QSA (Query String Append) flag preserves existing query parameters while adding a new one.