etc/php.ini-dist
%%AP_LIBEXEC%%/libphp4.so
@exec %D/sbin/apxs -e -a -n php4 %f
@unexec %D/sbin/apxs -e -A -n php4 %f
@exec %D/sbin/apachectl restart
@unexec %D/sbin/apachectl restart