To compile PHP for Zabbix 2.2 frontend you will need to use the following keys:

./configure --enable-mbstring --enable-sockets --with-mysql  --with-mysqli --with-ldap --enable-fpm --enable-bcmath  --with-gettext --with-xmlrpc --with-openssl --with-mcrypt --with-gd --with-zlib --with-freetype-dir=/usr/include/freetype2 --with-jpeg-dir=/usr/lib 

PHP ini required values (minimal):

 memory_limit = 128M
 post_max_size = 16M
 upload_max_filesize = 2M
 max_execution_time = 300
 max_input_time = 300
 session.auto_start = 0

Here is simple backup script for Zabbix 2 configuration data (hosts, items, templates etc). It will not backup history/event/trend data, so backup file is relatively small.

Just replace ZBX_DB and ZBX_USER with Zabbix database name and username.

mysqldump -u ZBX_USER -p ZBX_DB \
	--ignore-table=ZBX_DB.acknowledges \
	--ignore-table=ZBX_DB.alerts \
	--ignore-table=ZBX_DB.auditlog \
	--ignore-table=ZBX_DB.auditlog_details \
	--ignore-table=ZBX_DB.escalations \
	--ignore-table=ZBX_DB.events \
	--ignore-table=ZBX_DB.history \
	--ignore-table=ZBX_DB.history_log \
	--ignore-table=ZBX_DB.history_str \
	--ignore-table=ZBX_DB.history_str_sync \
	--ignore-table=ZBX_DB.history_sync \
	--ignore-table=ZBX_DB.history_text \
	--ignore-table=ZBX_DB.history_uint \
	--ignore-table=ZBX_DB.history_uint_sync \
	--ignore-table=ZBX_DB.trends \
	--ignore-table=ZBX_DB.trends_uint \
	| gzip > zbx_db.sql.gz