DirectoryIndex ignoring index.php

我正试图从头开始安装我的Apache2，它安装时没有启用任何模块，也没有任何相关的默认配置，可以被视为"网络主机"（实际上html显示为文本，PHP文件下载）

无论如何，我在httpd.conf 中有这个

# Default Directory Settings
<Directory />
     DirectoryIndex index.html index.php
     Options FollowSymLinks
     AllowOverride All
</Directory>

index.html似乎在默认情况下可以查找，但index.php不起作用。我做错了什么？

<VirtualHost *:80>
    ServerAdmin webmaster@localhost
    <IfModule mod_php5.c>
        AddType application/x-httpd-php .php
        AddType application/x-httpd-php-source .phps
        php_flag magic_quotes_gpc Off
        php_flag track_vars On
        php_flag register_globals Off
        php_value include_path .
    </IfModule>
    ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/
    DocumentRoot /home/was/www
    <Directory /home/was/www/>
        Options FollowSymLinks
        Options +ExecCGI Indexes FollowSymLinks MultiViews
        DirectoryIndex index.html index.php
        AllowOverride All
        Order allow,deny
        allow from all
    </Directory>
    <Location /cgi-bin >
        SetHandler cgi-script
        Options +ExecCGI
    </Location>
    <Directory /usr/lib/cgi-bin>
        AllowOverride None
        Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch
        Order allow,deny
        Allow from all
    </Directory>
    ErrorLog ${APACHE_LOG_DIR}/error.log
    # Possible values include: debug, info, notice, warn, error, crit,
    # alert, emerg.
    LogLevel warn
    CustomLog ${APACHE_LOG_DIR}/access.log combined
</VirtualHost>

注意所有的技巧只是为了让事情正常工作，比如PHP。这很烦人。