SEO友好的URL重定向到404错误

Question

我有一个用户可以注册的注册页面。注册后，他们将被重定向到他们的个人资料。重定向是：example.com/profiles/?id=[SOME ID]。这可行，但在我将.htaccess中的URL更改为SEO友好URL后，用户将被重定向到404页面错误，其中未找到其配置文件。实际上，当输入example.com/profiles?id=[SOME ID]时，它们的配置文件确实存在，但是使用example.com/profiles/[SOME ID]它表示配置文件不存在。这是我的.htaccess

        <IfModule mod_deflate.c>
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME}.php -f
Options -Multiviews
RewriteEngine on

RewriteCond %{THE_REQUEST} /profiles/(?:index\.php)?\?id=([^&\s]+) [NC]
RewriteRule ^ /profiles/%1? [L,R]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^profiles/([^/]+)/?$ /profiles/index.php?id=$1 [NC,L]
#Remove .php
RewriteCond %{REQUEST_FILENAME}.php -f
RewriteRule ^(.*?)/?$ /$1.php [L]
    SetOutputFilter DEFLATE
    <IfModule mod_setenvif.c>
        # Netscape 4.x has some problems...
        BrowserMatch ^Mozilla/4 gzip-only-text/html

        # Netscape 4.06-4.08 have some more problems
        BrowserMatch ^Mozilla/4\.0[678] no-gzip

        # MSIE masquerades as Netscape, but it is fine
        # BrowserMatch \bMSIE !no-gzip !gzip-only-text/html

        # NOTE: Due to a bug in mod_setenvif up to Apache 2.0.48
        # the above regex won't work. You can use the following
        # workaround to get the desired effect:
        BrowserMatch \bMSI[E] !no-gzip !gzip-only-text/html

        # Don't compress images
        SetEnvIfNoCase Request_URI .(?:gif|jpe?g|png)$ no-gzip dont-vary
    </IfModule>
    <IfModule mod_headers.c>
        # Make sure proxies don't deliver the wrong content
        Header append Vary User-Agent env=!dont-vary
    </IfModule>
</IfModule>

动态索引文件是example.com/profiles/，其中profiles文件夹有一个index.php。使用.htaccess消除index.php。如何使example.com/profiles/ [Some ID]返回实际的配置文件而不是404错误？