php+lighttpd应用异常，403-Forbidden

php+lighttpd应用错误，403-Forbidden
使用lighttpd和php。其中Lighttpd 1.4.23 ./configure --prefix=/usr/local --with-openssl --with-webdav-props
Php 5.3.0 ./configure --without-mysql --without-pear --with-openssl --without-sqlite --with-pcre-regex=yes 
--with-gettext --enable-libxml --with-libxml-dir=/usr --prefix=/usr/local 
编译，配置。
lighttpd.conf
server.modules = (
  "mod_access",
  "mod_accesslog" )
server.document-root = "/var/www/htdocs/"
server.errorlog = "/var/log/lighttpd/error.log"
index-file.names = ( "index.php", "index.html",
  "index.htm", "default.htm" )
mimetype.assign = (
  ".pdf" => "application/pdf",
  ".sig" => "application/pgp-signature",
  ".spl" => "application/futuresplash",
  ......
  ".tar.bz2" => "application/x-bzip-compressed-tar",
  "" => "application/octet-stream",
 )
accesslog.filename = "/var/log/lighttpd/access.log"
url.access-deny = ( "~", ".inc" )
$HTTP["url"] =~ ".pdf$" {
  server.range-requests = "disable"
}
static-file.exclude-extensions = ( ".php", ".pl", ".fcgi" )
在地址栏输入http://192.168.X.X/index.html可以正常显示页面，
  输入http://192.168.X.X/index.php显示403 -Forbidden错误页面
请问：为什么？怎么修改？

------解决方案--------------------
你做什么用的？推荐html+JavaScript+xml+cgi（c，shell）