URL 的 htaccess 重写规则

Question

I want to have a formatted URL like this:

www.mysite.com/view.php?id=1

where:

"id" range: 1-99 (without leading "0" from 1 to 9)
"id": always lowercase, no "Id" or "ID" or "iD"

Anything different from this format must redirect it to www.mysite.com/view.php or formatted ID value:

Examples:

www.mysite.com/view.php?id=1sdeW --> www.mysite.com/view.php?id=1
www.mysite.com/view.php?erwrrw34 --> www.mysite.com/view.php
www.mysite.com/view.php?id=01 --> www.mysite.com/view.php?id=1
www.mysite.com/view.php?ID=33 --> www.mysite.com/view.php?id=33

I did some part of this logic already ( RegExp , htaccess , rewriterules ):

Please, help to complete the full logic above.

RewriteEngine On
RewriteCond %{QUERY_STRING} ID=([0-9]+)
RewriteRule ^(.*)$ /view.php?id=%1 [R=301,L]

EDIT #1

I simplified my approach to achieve the same results:

   RewriteEngine On
   RewriteBase /
   RewriteCond %{REQUEST_FILENAME} !-f
   RewriteCond %{REQUEST_URI} ^/view.php$
   RewriteCond %{QUERY_STRING} ^(?!(id=[1-9][0-9]{0,1})$).*$
   RewriteRule .* ? [R=301,L]

1) With:

   RewriteRule .* ? [R=301,L]

It works, but the link placed inside of my web page to:

   www.mysite.com/view.php

also redirects to:

   www.mysite.com

2) With:

   RewriteRule .* /view.php? [R=301,L]

I receive well known "TOO MANY REDIRECTS" loop.

How do I get rid of this?

Answer 1

The main thing is to make sure that you handle only URLs that starts with /view.php . Next, when you use RewriteRule there is no need to capture the URL using ^(.*)$ . Finally, divide the logic into smaller handlers.

# Correct the wrong case for the "id" parameter
RewriteCond %{REQUEST_URI} ^/view.php$
RewriteCond %{QUERY_STRING} (ID|Id|iD)=(\d+)
RewriteRule . /view.php?id=%2 [R=301,L]

# Make sure that "id" contains only digits
RewriteCond %{REQUEST_URI} ^/view.php$
RewriteCond %{QUERY_STRING} id=([1-9]\d*)[^&]+
RewriteRule . /view.php?id=%1 [R=301,L]

# Check if the current URL contains "view.php?" but doesn’t have a valid "id" string
RewriteCond %{THE_REQUEST} ^[A-Z]+\s+/view.php\?
RewriteCond %{QUERY_STRING} !(id=[1-9])
RewriteRule . /view.php? [R=301,L]