curl CURL
gd GD
gmp GMP
imap IMAP
interbase Interbase
ldap LDAP
mcrypt MCrypt
mhash MHASH
mysql MySQL
odbc ODBC
pgsql PostgreSQL
pspell pspell
recode recode
snmp SNMP
sqlite SQLite
sybase Sybase mssql
tidy tidy
xmlrpc XML-RPC
xsl XSL