我需要理清我的htaccess规则，因为我认为这是许多缓慢请求的原因......
我做了以下工作，但不确定是否有一个更好和有效的方式，而不是我现在正在做的方式...我之前真的不能改变结构，所以我必须这样做，改变我的方式将来结构更好。
我希望它是动态的，无需更改现有的URL，很多人都知道并且索引已经很久以前...而且，我不想永久重定向....
我的文件结构，（都在同一个文件夹中）
# If requested resource exists as a file or directory go to it
RewriteCond %{REQUEST_FILENAME} -f [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule (.*) - [L]
RewriteRule ^sitemap\.xml$ /sitemap.php [L]
# i dynamically change the page to AMP if /amp/pagename.php is accessed....
RewriteRule ^amp/(.*) /$1 [NC,QSA,L]
#i have added this one rule again as the amp page for the home page is just /amp and the rule above with the trailing slash, didnt execute...
RewriteRule ^amp(.*) /$1 [NC,QSA,L]
RewriteRule ^car-price-(.*)-([0-9]+).php$ _car-price-mn-yr.php?gpimnt=$1&gpiyr=$2 [QSA,L]
#car-price-january-2018.php <- multiple urls: all months, years from 2009 to now...
RewriteRule ^car-price-([0-9]+).php$ _car-price-yr.php?gpiyr=$1 [QSA,L]
#car-price-2009.php <- yearly summary, many urls: 2009 till now.
RewriteRule ^car-price-([A-Za-z-]+).php$ _car-price-wildcard.php?_gpwilcvar=$1 [NC,QSA,L]
#car-price-london.php <- similar to the above, making it confusing.... many cities...car-price-scotland.php etc
RewriteRule ^car-price-([\w-]+).php$ _car-price-wildcard.php?_gpwilcvar=$1 [NC,QSA,L]
#gbp-rate-today-usa.php <- i have different urls for e.g. cad.rate-today-usa.php, etc...
RewriteRule ^([\w-]+).php$ _car-price-wildcard.php?_gpwilcvar=$1 [NC,QSA,L]
#why-do-diesel-cars-cost-more.php <-i have many articles that does not have a prefix or some sort to make this easier..
这些规则使我的网站加载时间延长了4秒....是否有更好的规则可以提供帮助，或者这是唯一的方法吗？
MOD REWRITE日志：
[Sun Mar 04 22:21:55.879811 2018] [rewrite:trace3] [pid 11803] mod_rewrite.c(476): [client 192.168.0.17:51780] 192.168.0.17 - - [carpriceusav2.local/sid#7fe0c37f2140][rid#7fe0c37370a0/initial] [perdir /media/sf_repo/carPriceusa.comNEW/] strip per-dir prefix: /media/sf_repo/carPriceusa.comNEW/car-price-kolkata.php -> car-price-kolkata.php, referer: http://carpriceusav2.local/silver-price-usa.php
[Sun Mar 04 22:21:55.879861 2018] [rewrite:trace3] [pid 11803] mod_rewrite.c(476): [client 192.168.0.17:51780] 192.168.0.17 - - [carpriceusav2.local/sid#7fe0c37f2140][rid#7fe0c37370a0/initial] [perdir /media/sf_repo/carPriceusa.comNEW/] applying pattern '(.*)' to uri 'car-price-kolkata.php', referer: http://carpriceusav2.local/silver-price-usa.php
[Sun Mar 04 22:21:55.879992 2018] [rewrite:trace4] [pid 11803] mod_rewrite.c(476): [client 192.168.0.17:51780] 192.168.0.17 - - [carpriceusav2.local/sid#7fe0c37f2140][rid#7fe0c37370a0/initial] [perdir /media/sf_repo/carPriceusa.comNEW/] RewriteCond: input='/media/sf_repo/carPriceusa.comNEW/car-price-kolkata.php' pattern='-f' => not-matched, referer: http://carpriceusav2.local/silver-price-usa.php
[Sun Mar 04 22:21:55.880117 2018] [rewrite:trace4] [pid 11803] mod_rewrite.c(476): [client 192.168.0.17:51780] 192.168.0.17 - - [carpriceusav2.local/sid#7fe0c37f2140][rid#7fe0c37370a0/initial] [perdir /media/sf_repo/carPriceusa.comNEW/] RewriteCond: input='/media/sf_repo/carPriceusa.comNEW/car-price-kolkata.php' pattern='-d' => not-matched, referer: http://carpriceusav2.local/silver-price-usa.php
[Sun Mar 04 22:21:55.880128 2018] [rewrite:trace3] [pid 11803] mod_rewrite.c(476): [client 192.168.0.17:51780] 192.168.0.17 - - [carpriceusav2.local/sid#7fe0c37f2140][rid#7fe0c37370a0/initial] [perdir /media/sf_repo/carPriceusa.comNEW/] strip per-dir prefix: /media/sf_repo/carPriceusa.comNEW/car-price-kolkata.php -> car-price-kolkata.php, referer: http://carpriceusav2.local/silver-price-usa.php
[Sun Mar 04 22:21:55.880135 2018] [rewrite:trace3] [pid 11803] mod_rewrite.c(476): [client 192.168.0.17:51780] 192.168.0.17 - - [carpriceusav2.local/sid#7fe0c37f2140][rid#7fe0c37370a0/initial] [perdir /media/sf_repo/carPriceusa.comNEW/] applying pattern '^sitemap\\.xml$' to uri 'car-price-kolkata.php', referer: http://carpriceusav2.local/silver-price-usa.php
[Sun Mar 04 22:21:55.880144 2018] [rewrite:trace3] [pid 11803] mod_rewrite.c(476): [client 192.168.0.17:51780] 192.168.0.17 - - [carpriceusav2.local/sid#7fe0c37f2140][rid#7fe0c37370a0/initial] [perdir /media/sf_repo/carPriceusa.comNEW/] strip per-dir prefix: /media/sf_repo/carPriceusa.comNEW/car-price-kolkata.php -> car-price-kolkata.php, referer: http://carpriceusav2.local/silver-price-usa.php
[Sun Mar 04 22:21:55.880151 2018] [rewrite:trace3] [pid 11803] mod_rewrite.c(476): [client 192.168.0.17:51780] 192.168.0.17 - - [carpriceusav2.local/sid#7fe0c37f2140][rid#7fe0c37370a0/initial] [perdir /media/sf_repo/carPriceusa.comNEW/] applying pattern '^amp/(.*)' to uri 'car-price-kolkata.php', referer: http://carpriceusav2.local/silver-price-usa.php
[Sun Mar 04 22:21:55.880159 2018] [rewrite:trace3] [pid 11803] mod_rewrite.c(476): [client 192.168.0.17:51780] 192.168.0.17 - - [carpriceusav2.local/sid#7fe0c37f2140][rid#7fe0c37370a0/initial] [perdir /media/sf_repo/carPriceusa.comNEW/] strip per-dir prefix: /media/sf_repo/carPriceusa.comNEW/car-price-kolkata.php -> car-price-kolkata.php, referer: http://carpriceusav2.local/silver-price-usa.php
[Sun Mar 04 22:21:55.880166 2018] [rewrite:trace3] [pid 11803] mod_rewrite.c(476): [client 192.168.0.17:51780] 192.168.0.17 - - [carpriceusav2.local/sid#7fe0c37f2140][rid#7fe0c37370a0/initial] [perdir /media/sf_repo/carPriceusa.comNEW/] applying pattern '^amp(.*)' to uri 'car-price-kolkata.php', referer: http://carpriceusav2.local/silver-price-usa.php
[Sun Mar 04 22:21:55.880178 2018] [rewrite:trace3] [pid 11803] mod_rewrite.c(476): [client 192.168.0.17:51780] 192.168.0.17 - - [carpriceusav2.local/sid#7fe0c37f2140][rid#7fe0c37370a0/initial] [perdir /media/sf_repo/carPriceusa.comNEW/] strip per-dir prefix: /media/sf_repo/carPriceusa.comNEW/car-price-kolkata.php -> car-price-kolkata.php, referer: http://carpriceusav2.local/silver-price-usa.php
[Sun Mar 04 22:21:55.880195 2018] [rewrite:trace3] [pid 11803] mod_rewrite.c(476): [client 192.168.0.17:51780] 192.168.0.17 - - [carpriceusav2.local/sid#7fe0c37f2140][rid#7fe0c37370a0/initial] [perdir /media/sf_repo/carPriceusa.comNEW/] applying pattern '^car-price-(.*)-([0-9]+).php$' to uri 'car-price-kolkata.php', referer: http://carpriceusav2.local/silver-price-usa.php
[Sun Mar 04 22:21:55.880204 2018] [rewrite:trace3] [pid 11803] mod_rewrite.c(476): [client 192.168.0.17:51780] 192.168.0.17 - - [carpriceusav2.local/sid#7fe0c37f2140][rid#7fe0c37370a0/initial] [perdir /media/sf_repo/carPriceusa.comNEW/] strip per-dir prefix: /media/sf_repo/carPriceusa.comNEW/car-price-kolkata.php -> car-price-kolkata.php, referer: http://carpriceusav2.local/silver-price-usa.php
[Sun Mar 04 22:21:55.880211 2018] [rewrite:trace3] [pid 11803] mod_rewrite.c(476): [client 192.168.0.17:51780] 192.168.0.17 - - [carpriceusav2.local/sid#7fe0c37f2140][rid#7fe0c37370a0/initial] [perdir /media/sf_repo/carPriceusa.comNEW/] applying pattern '^car-price-([0-9]+).php$' to uri 'car-price-kolkata.php', referer: http://carpriceusav2.local/silver-price-usa.php
[Sun Mar 04 22:21:55.880219 2018] [rewrite:trace3] [pid 11803] mod_rewrite.c(476): [client 192.168.0.17:51780] 192.168.0.17 - - [carpriceusav2.local/sid#7fe0c37f2140][rid#7fe0c37370a0/initial] [perdir /media/sf_repo/carPriceusa.comNEW/] strip per-dir prefix: /media/sf_repo/carPriceusa.comNEW/car-price-kolkata.php -> car-price-kolkata.php, referer: http://carpriceusav2.local/silver-price-usa.php
[Sun Mar 04 22:21:55.880226 2018] [rewrite:trace3] [pid 11803] mod_rewrite.c(476): [client 192.168.0.17:51780] 192.168.0.17 - - [carpriceusav2.local/sid#7fe0c37f2140][rid#7fe0c37370a0/initial] [perdir /media/sf_repo/carPriceusa.comNEW/] applying pattern '^car-price-([A-Za-z-]+).php$' to uri 'car-price-kolkata.php', referer: http://carpriceusav2.local/silver-price-usa.php
[Sun Mar 04 22:21:55.880235 2018] [rewrite:trace2] [pid 11803] mod_rewrite.c(476): [client 192.168.0.17:51780] 192.168.0.17 - - [carpriceusav2.local/sid#7fe0c37f2140][rid#7fe0c37370a0/initial] [perdir /media/sf_repo/carPriceusa.comNEW/] rewrite 'car-price-kolkata.php' -> '_car-price-wildcard.php?_gpwilcvar=kolkata', referer: http://carpriceusav2.local/silver-price-usa.php
[Sun Mar 04 22:21:55.880243 2018] [rewrite:trace3] [pid 11803] mod_rewrite.c(476): [client 192.168.0.17:51780] 192.168.0.17 - - [carpriceusav2.local/sid#7fe0c37f2140][rid#7fe0c37370a0/initial] split uri=_car-price-wildcard.php?_gpwilcvar=kolkata -> uri=_car-price-wildcard.php, args=_gpwilcvar=kolkata, referer: http://carpriceusav2.local/silver-price-usa.php
[Sun Mar 04 22:21:55.880250 2018] [rewrite:trace3] [pid 11803] mod_rewrite.c(476): [client 192.168.0.17:51780] 192.168.0.17 - - [carpriceusav2.local/sid#7fe0c37f2140][rid#7fe0c37370a0/initial] [perdir /media/sf_repo/carPriceusa.comNEW/] add per-dir prefix: _car-price-wildcard.php -> /media/sf_repo/carPriceusa.comNEW/_car-price-wildcard.php, referer: http://carpriceusav2.local/silver-price-usa.php
[Sun Mar 04 22:21:55.880259 2018] [rewrite:trace2] [pid 11803] mod_rewrite.c(476): [client 192.168.0.17:51780] 192.168.0.17 - - [carpriceusav2.local/sid#7fe0c37f2140][rid#7fe0c37370a0/initial] [perdir /media/sf_repo/carPriceusa.comNEW/] strip document_root prefix: /media/sf_repo/carPriceusa.comNEW/_car-price-wildcard.php -> /_car-price-wildcard.php, referer: http://carpriceusav2.local/silver-price-usa.php
[Sun Mar 04 22:21:55.880266 2018] [rewrite:trace1] [pid 11803] mod_rewrite.c(476): [client 192.168.0.17:51780] 192.168.0.17 - - [carpriceusav2.local/sid#7fe0c37f2140][rid#7fe0c37370a0/initial] [perdir /media/sf_repo/carPriceusa.comNEW/] internal redirect with /_car-price-wildcard.php [INTERNAL REDIRECT], referer: http://carpriceusav2.local/silver-price-usa.php
[Sun Mar 04 22:21:55.880509 2018] [rewrite:trace3] [pid 11803] mod_rewrite.c(476): [client 192.168.0.17:51780] 192.168.0.17 - - [carpriceusav2.local/sid#7fe0c37f2140][rid#7fe0c372d028/initial/redir#1] [perdir /media/sf_repo/carPriceusa.comNEW/] strip per-dir prefix: /media/sf_repo/carPriceusa.comNEW/_car-price-wildcard.php -> _car-price-wildcard.php, referer: http://carpriceusav2.local/silver-price-usa.php
[Sun Mar 04 22:21:55.880519 2018] [rewrite:trace3] [pid 11803] mod_rewrite.c(476): [client 192.168.0.17:51780] 192.168.0.17 - - [carpriceusav2.local/sid#7fe0c37f2140][rid#7fe0c372d028/initial/redir#1] [perdir /media/sf_repo/carPriceusa.comNEW/] applying pattern '(.*)' to uri '_car-price-wildcard.php', referer: http://carpriceusav2.local/silver-price-usa.php
[Sun Mar 04 22:21:55.880744 2018] [rewrite:trace4] [pid 11803] mod_rewrite.c(476): [client 192.168.0.17:51780] 192.168.0.17 - - [carpriceusav2.local/sid#7fe0c37f2140][rid#7fe0c372d028/initial/redir#1] [perdir /media/sf_repo/carPriceusa.comNEW/] RewriteCond: input='/media/sf_repo/carPriceusa.comNEW/_car-price-wildcard.php' pattern='-f' => matched, referer: http://carpriceusav2.local/silver-price-usa.php
[Sun Mar 04 22:21:55.880758 2018] [rewrite:trace1] [pid 11803] mod_rewrite.c(476): [client 192.168.0.17:51780] 192.168.0.17 - - [carpriceusav2.local/sid#7fe0c37f2140][rid#7fe0c372d028/initial/redir#1] [perdir /media/sf_repo/carPriceusa.comNEW/] pass through /media/sf_repo/carPriceusa.comNEW/_car-price-wildcard.php, referer: http://carpriceusav2.local/silver-price-usa.php
结合/amp规则：
RewriteRule ^amp(/.+)? /$1 [NC,QSA,L]
作为一般的经验法则，避免使用.*匹配，因为*是贪婪的并且创造更大的回溯。
接下来，您可以在单个PHP文件中执行此操作，而不是使用单独的PHP脚本接受可选的gpimnt参数。如果不存在相同的值，则仅继续接收gpiyr值。这可以再次与条件gpwilcvar参数等组合，并减少您的URL匹配的模式总数。 PHP中的单个defined()（或isset()）调用比模式匹配更快。