/usr/lib# grep -i php -r /etc/apache2 | grep -i so
/etc/apache2/mods-available/php4.conf:  AddType application/x-httpd-php-source .phps
/etc/apache2/mods-available/php4.load:LoadModule php4_module /usr/lib/apache2/modules/libphp4.so
/etc/apache2/mods-enabled/php4.conf:  AddType application/x-httpd-php-source .phps
/etc/apache2/mods-enabled/php4.load:LoadModule php4_module /usr/lib/apache2/modules/libphp4.so
/etc/apache2/apache2.conf:#AddType application/x-httpd-php-source .phps
/etc/apache2/apache2.conf_org:#AddType application/x-httpd-php-source .phps