lighttpd & php5-cgiで発生するエラーについて

Windowsで環境つくらないといけなくなったので、VirtualPCでDebian入れてlighttpd(fcgi) + php5-cgiの環境つくった。

とりあえずphp5-cgiとphp-pearとlighttpdをapt-getでインストールして、lighttpdの設定して、symfonyインストールしてsvnでリポジトリからファイル取ってきていざ確認しようとしたら

Notice: Undefined index: QUERY_STRING in /usr/share/php/symfony/request/sfWebRequest.class.php

QUERY_STRINGが未定義って出る。あれ？
とりあえず変数「$_SERVER」の中身見てみると

Array
(
    [SERVER_SOFTWARE] => lighttpd/1.4.13
    [SERVER_NAME] => project
    [GATEWAY_INTERFACE] => CGI/1.1
    [SERVER_PROTOCOL] => HTTP/1.1
    [SERVER_PORT] => 80
    [SERVER_ADDR] => 0.0.0.0
    [REQUEST_METHOD] => GET
    [REDIRECT_STATUS] => 200
    [REQUEST_URI] => /
    [REMOTE_ADDR] => 192.168.0.1
    [REMOTE_PORT] => 49652
    [CONTENT_LENGTH] => 0
    [SCRIPT_FILENAME] => /home/works/www/index.php
    [SCRIPT_NAME] => /index.php
    [DOCUMENT_ROOT] => /home/works/www/
    [HTTP_HOST] => project
    [HTTP_USER_AGENT] => Mozilla/5.0 (Windows; U; Windows NT 6.0; ja; rv:1.8.1.4) Gecko/20070515 Firefox/2.0.0.4
    [HTTP_ACCEPT] => text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5
    [HTTP_ACCEPT_LANGUAGE] => ja,en-us;q=0.7,en;q=0.3
    [HTTP_ACCEPT_ENCODING] => gzip,deflate
    [HTTP_ACCEPT_CHARSET] => Shift_JIS,utf-8;q=0.7,*;q=0.7
    [HTTP_KEEP_ALIVE] => 300
    [HTTP_CONNECTION] => keep-alive
    [ORIG_SCRIPT_NAME] => /index.php
    [ORIG_SCRIPT_FILENAME] => /home/works/www/index.php
    [PHP_SELF] => /index.php
    [REQUEST_TIME] => 1183548192
    [argv] => Array
        (
        )

    [argc] => 0
)

うん。「QUERY_STRING」がない。ためしに「http://xxxxxxx/?hoge=hoge」でアクセスすると

Array
(
    ...略...
    [QUERY_STRING] => hoge=hoge
    ...略...
)

ということで一応出てくるっぽい。えーこれ普通だっけ？

んなわけないということでみてみたら「/etc/lighttpd/conf-available/10-cgi.conf」で

cgi.assign      = (
        ".pl"  => "/usr/bin/perl",
        ".php" => "/usr/bin/php-cgi",
        ".py"  => "/usr/bin/python",
)

とか書いてあるのを見つけた。これって。。。

cgi.assign      = (
        ".pl"  => "/usr/bin/perl",
#       ".php" => "/usr/bin/php-cgi",
        ".py"  => "/usr/bin/python",
)

ためしにコメントにしてlighttpdの再起動を行って動作確認してみると

Array
(
    [FCGI_ROLE] => RESPONDER
    [SERVER_SOFTWARE] => lighttpd/1.4.13
    [SERVER_NAME] => project
    [GATEWAY_INTERFACE] => CGI/1.1
    [SERVER_PORT] => 80
    [SERVER_ADDR] => 192.168.0.2
    [REMOTE_PORT] => 49822
    [REMOTE_ADDR] => 192.168.0.1
    [SCRIPT_NAME] => /index.php
    [PATH_INFO] => 
    [SCRIPT_FILENAME] => /home/works/www/index.php
    [DOCUMENT_ROOT] => /home/works/www/
    [REQUEST_URI] => /
    [QUERY_STRING] => 
    [REQUEST_METHOD] => GET
    [REDIRECT_STATUS] => 200
    [SERVER_PROTOCOL] => HTTP/1.1
    [HTTP_HOST] => project
    [HTTP_USER_AGENT] => Mozilla/5.0 (Windows; U; Windows NT 6.0; ja; rv:1.8.1.4) Gecko/20070515 Firefox/2.0.0.4
    [HTTP_ACCEPT] => text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5
    [HTTP_ACCEPT_LANGUAGE] => ja,en-us;q=0.7,en;q=0.3
    [HTTP_ACCEPT_ENCODING] => gzip,deflate
    [HTTP_ACCEPT_CHARSET] => Shift_JIS,utf-8;q=0.7,*;q=0.7
    [HTTP_KEEP_ALIVE] => 300
    [HTTP_CONNECTION] => keep-alive
    [HTTP_CACHE_CONTROL] => max-age=0
    [PATH] => /sbin:/bin:/usr/sbin:/usr/bin
    [SHELL] => /bin/bash
    [USER] => root
    [PHP_FCGI_CHILDREN] => 4
    [PHP_FCGI_MAX_REQUESTS] => 10000
    [PHP_SELF] => 
    [argv] => Array
        (
        )

    [argc] => 0
)

あーそういうことですかー。