關於這個htaccess文件的四個具體問題

Question

#+FollowSymLinks must be enabled for any rules to work, this is a security 
#requirement of the rewrite engine. Normally it's enabled in the root and you 
#shouldn't have to add it, but it doesn't hurt to do so. 
Options +FollowSymlinks 
#Apache scans all incoming URL requests, checks for matches in our .htaccess file 
#and rewrites those matching URLs to whatever we specify. 
#to enable runtime rewriting engine 
RewriteEngine On 

#this tells mod_rewrite to leave the URL unchanged (the dash part -) and quit 
#other rewwrite processing rules if the requested segment has one of those 
#prefixes (that's what we asking when we use the^sign), on the list. If the 
#prefix is in the list, all subsequent Rewrite Rules are skipped. 
#So to avoid some files OR directories to be redirected we use: 
RewriteRule ^(somefile|somedir|someotherfile) – [L] 

1）我們不需要在這些先前的RewriteRule之前有一個條件嗎？

#this will allow direct linkage to this extensions, regardless the case sensitive. 
RewriteCond %{REQUEST_FILENAME} !\.(js|ico|zip|rar|mov|mpeg4|mp4|gif|jpg|png|css|doc|pdf|docx|wmv|mpeg|avi|mpg|flv|ppt|pptx|txt)$ - [NC] 

2）請問[NC]國旗這裏處理所有情況下的變化？

#if the request uri has not public... 
RewriteCond %{REQUEST_URI} !^/public/.*$ 
#rewrite to public something... 
RewriteRule ^(.*)$ /public/$1 

3）爲什麼我們有$ 1和對我們的重寫規則不/public/index.php？

#rewrite all requests that start with public, to public/index.php and if that's 
#the case, don't run any other rule. 
RewriteRule ^public/.*$ /public/index.php [NC,L] 

4），因爲這是最後一個規則，我們可以刪除了L位？

Answer 1

1. 沒有，任何與somefile，somedir或someotherfile開始將不被改寫（-）。 [L]確保進一步的規則（包括這一個）不會被處理。
2. 是的。
3. 因爲RewriteCond也可以匹配/public/otherthing，而不僅僅是/public/index.php。
4. 不，沒有[L]，將發生無限循環，因爲重寫的URL /public/index.php匹配`^public.*$。