url重写当url的一部分是数字或num+单词时如何重新配置

Question

我有一个问题来修复url重写代码

RewriteRule ^([aA-zZ0-9_-]+)/?([0-9]*)/?([A-Za-z0-9_-]*)/?([A-Za-z0-9_-]*)/?$ index.php?m=$1&r=$2&a=$3&b=$4 [QSA]

它可以很好地与以下内容配合使用：（whit和whiout结尾为"/"）

Test/1234/gotoA/gotoB/
Test/1234/gotoA/
Test/1234/
Test/gotoA/gotoB/

问题是当gotoA从一个数字开始时，例如：

Test/123gotoA 

返回：

index.php?m=Test&r=123&a=gotoA&b=

我该怎么修？

Answer 1

问题是您将/设置为可选。它是/(xxx)的整体，应该是可选的。

试试这个：

RewriteRule ^([aA-zZ0-9_-]+)(?:/(d+))?(?:/([a-zA-Zd_-]+))?(?:/([a-zA-Zd_-]+))?/?$  index.php?m=$1&r=$2&a=$3&b=$4 [QSA]

如果我们以Test/123gotoA作为输入的原始正则表达式，则会发生以下情况：

#before first match
regex: |^([aA-zZ0-9_-]+)/?([0-9]*)/?([A-Za-z0-9_-]*)/?([A-Za-z0-9_-]*)/?$
input: |Test/123gotoA
# ^
regex: ^|([aA-zZ0-9_-]+)/?([0-9]*)/?([A-Za-z0-9_-]*)/?([A-Za-z0-9_-]*)/?$
input: |Test/123gotoA
# [aA-zZ0-9_-], once or more, captured: $1 is "Test"
regex: ^([aA-zZ0-9_-]+)|/?([0-9]*)/?([A-Za-z0-9_-]*)/?([A-Za-z0-9_-]*)/?$
input: Test|/123gotoA
# /?: a / is found
regex: ^([aA-zZ0-9_-]+)/?|([0-9]*)/?([A-Za-z0-9_-]*)/?([A-Za-z0-9_-]*)/?$
input: Test/|123gotoA
# [0-9], zero or more times, captured: $2 is "123"
regex: ^([aA-zZ0-9_-]+)/?([0-9]*)|/?([A-Za-z0-9_-]*)/?([A-Za-z0-9_-]*)/?$
input: Test/123|gotoA
# /?: no /, but satisified, since ? can match zero times
regex: ^([aA-zZ0-9_-]+)/?([0-9]*)/?|([A-Za-z0-9_-]*)/?([A-Za-z0-9_-]*)/?$
input: Test/123|gotoA
# [A-Za-z0-9_-], zero or more times, captured: $3 is "gotoA"
regex: ^([aA-zZ0-9_-]+)/?([0-9]*)/?([A-Za-z0-9_-]*)|/?([A-Za-z0-9_-]*)/?$
input: Test/123gotoA|
# /?: no /, but satisified, since ? can match zero times
regex: ^([aA-zZ0-9_-]+)/?([0-9]*)/?([A-Za-z0-9_-]*)/?|([A-Za-z0-9_-]*)/?$
input: Test/123gotoA|
# [A-Za-z0-9_-], zero or more times, captured: $4 is ""
regex: ^([aA-zZ0-9_-]+)/?([0-9]*)/?([A-Za-z0-9_-]*)/?([A-Za-z0-9_-]*)|/?$
input: Test/123gotoA|
# /?: no /, but satisified, since ? can match zero times
regex: ^([aA-zZ0-9_-]+)/?([0-9]*)/?([A-Za-z0-9_-]*)/?([A-Za-z0-9_-]*)/?|$
input: Test/123gotoA|
# $: satisified, since this is the end of input
regex: ^([aA-zZ0-9_-]+)/?([0-9]*)/?([A-Za-z0-9_-]*)/?([A-Za-z0-9_-]*)/?$|
input: Test/123gotoA|
# end of match: success

现在，使用重写的regex，情况有所不同：

# before first match
regex: |^([aA-zZ0-9_-]+)(?:/(d+))?(?:/([a-zA-Zd_-]+))?(?:/([a-zA-Zd_-]+))?/?$
input: |Test/123gotoA
# ^
regex: ^|([aA-zZ0-9_-]+)(?:/(d+))?(?:/([a-zA-Zd_-]+))?(?:/([a-zA-Zd_-]+))?/?$
input: |Test/123gotoA
# [aA-zZ0-9_-], one or more times, captured: $1 is "Test"
regex: ^([aA-zZ0-9_-]+)|(?:/(d+))?(?:/([a-zA-Zd_-]+))?(?:/([a-zA-Zd_-]+))?/?$
input: Test|/123gotoA
# Try and find /, then one or more digits, zero or one time: match, $2 is "123"
regex: ^([aA-zZ0-9_-]+)(?:/(d+))?|(?:/([a-zA-Zd_-]+))?(?:/([a-zA-Zd_-]+))?/?$
input: Test/123|gotoA
# next group: a / must be found, but the next character is "g": backtrack, $2 is now "12"
regex: ^([aA-zZ0-9_-]+)(?:/(d+))?|(?:/([a-zA-Zd_-]+))?(?:/([a-zA-Zd_-]+))?/?$
input: Test/12|3gotoA
# but here again the next character is not a /: the engine must backtrak again, until:
regex: ^([aA-zZ0-9_-]+)(?:/(d+))?|(?:/([a-zA-Zd_-]+))?(?:/([a-zA-Zd_-]+))?/?$
input: Test|/123gotoA
# (?:/(d+))? is still satified, as it is optional, and $2 is now ""
# Next group: /, followed by [a-zA-Zd_-] one or more times, captures: $3 is "123gotoA"
regex: ^([aA-zZ0-9_-]+)(?:/(d+))?(?:/([a-zA-Zd_-]+))?|(?:/([a-zA-Zd_-]+))?/?$
input: Test/123gotoA|
# Next group: same as second, but satisfied with an empty match: $4 is ""
regex: ^([aA-zZ0-9_-]+)(?:/(d+))?(?:/([a-zA-Zd_-]+))?(?:/([a-zA-Zd_-]+))?|/?$
input: Test/123gotoA|
# an optional /: satisified
regex: ^([aA-zZ0-9_-]+)(?:/(d+))?(?:/([a-zA-Zd_-]+))?(?:/([a-zA-Zd_-]+))?/?|$
input: Test/123gotoA|
# end of input: satisified
regex: ^([aA-zZ0-9_-]+)(?:/(d+))?(?:/([a-zA-Zd_-]+))?(?:/([a-zA-Zd_-]+))?/?$|
input: Test/123gotoA|
# Match