这种情况在Apache 2.4.25下失败，但在Apache 2.4.20下运行。
测试网址：
https://server/some-app/fun
目录内容：
drwxr-xr-x 118 xx root 4012 May 18 16:12 ..
-rw-r--r-- 1 xx root 155 May 18 16:15 index.php
-rwxr-xr-x 1 xx root 450 May 18 16:25 .htaccess
drwxr-xr-x 4 xx root 136 May 18 16:25 .
我希望提供index.php，并将“/ fun”作为GET参数传递。
.htaccess确定
这个版本的.htaccess提供了index.php没有问题，GET参数按预期显示“/ fun”：
RewriteEngine on
RewriteCond $1 !^(index.php)
RewriteRule ^(.*)$ index.php?/$1 [L,NS]
提供index.php，$ _GET为：
Array
(
[/fun] =>
)
.htaccess 404
RewriteEngine on
RewriteCond $1 !^(index.php)
RewriteRule ^(.*)$ index.php/$1 [L,NS]
这一个导致404，PHP-FPM给出错误：
[proxy_fcgi:error] [client 192.168.200.1:59812] AH01071: Got error 'Primary script unknown\n'
请注意，区别在于我从RewriteRule的替换中删除了问号。
相关的FCGI配置：
<IfModule !mod_php5.c>
<FilesMatch \.php$>
SetHandler "proxy:unix:///var/run/php-fpm-xyz.sock|fcgi://xyz/"
</FilesMatch>
</IfModule>
Timeout 3000
DirectoryIndex index.php
清理日志
[ssl:info] AH01964: Connection to child 18 established (server servername:443)
[authz_core:debug] mod_authz_core.c(809): AH01626: authorization result of Require all granted: granted
[authz_core:debug] mod_authz_core.c(809): AH01626: authorization result of <RequireAny>: granted
[perdir /data/www/some-app/] strip per-dir prefix: /data/www/some-app/fun -> fun
[perdir /data/www/some-app/] applying pattern '^(.*)$' to uri 'fun'
[perdir /data/www/some-app/] RewriteCond: input='fun' pattern='!^(index.php)' => matched
[perdir /data/www/some-app/] rewrite 'fun' -> 'index.php/fun'
[perdir /data/www/some-app/] add per-dir prefix: index.php/fun -> /data/www/some-app/index.php/fun
[perdir /data/www/some-app/] strip document_root prefix: /data/www/some-app/index.php/fun -> /some-app/index.php/fun
[perdir /data/www/some-app/] internal redirect with /some-app/index.php/fun [INTERNAL REDIRECT]
[authz_core:debug] mod_authz_core.c(809): AH01626: authorization result of Require all granted: granted
[authz_core:debug] mod_authz_core.c(809): AH01626: authorization result of <RequireAny>: granted
[perdir /data/www/some-app/] add path info postfix: /data/www/some-app/index.php -> /data/www/some-app/index.php/fun
[perdir /data/www/some-app/] strip per-dir prefix: /data/www/some-app/index.php/fun -> index.php/fun
[perdir /data/www/some-app/] applying pattern '^(.*)$' to uri 'index.php/fun'
[perdir /data/www/some-app/] RewriteCond: input='index.php/fun' pattern='!^(index.php)' => not-matched
[perdir /data/www/some-app/] pass through /data/www/some-app/index.php
[proxy:debug] mod_proxy.c(1228): AH01143: Running scheme unix handler (attempt 0)
[proxy_fcgi:debug] mod_proxy_fcgi.c(913): AH01076: url: fcgi://xyz//data/www/some-app/index.php proxyname: (null) proxyport: 0
[proxy_fcgi:debug] mod_proxy_fcgi.c(920): AH01078: serving URL fcgi://xyz//data/www/some-app/index.php
[proxy:debug] proxy_util.c(2156): AH00942: FCGI: has acquired connection for (*)
[proxy:debug] proxy_util.c(2209): AH00944: connecting fcgi://xyz//data/www/some-app/index.php to xyz:8000
[proxy:debug] proxy_util.c(2246): AH02545: fcgi: has determined UDS as /var/run/php-fpm-xyz.sock
[proxy:debug] proxy_util.c(2418): AH00947: connected //data/www/some-app/index.php to httpd-UDS:0
[proxy:debug] proxy_util.c(2786): AH02823: FCGI: connection established with Unix domain socket /var/run/php-fpm-xyz.sock (*)
[authz_core:debug] mod_authz_core.c(809): AH01626: authorization result of Require all granted: granted
[authz_core:debug] mod_authz_core.c(809): AH01626: authorization result of <RequireAny>: granted
[proxy_fcgi:error] AH01071: Got error 'Primary script unknown\n'
[proxy:debug] proxy_util.c(2171): AH00943: FCGI: has released connection for (*)