php -m
[PHP Modules]
apc
bcmath
bz2
calendar
Core
ctype
curl
date
dom
ereg
exif
filter
ftp
gd
gettext
hash
iconv
igbinary
imagick
imap
json
libxml
mbstring
mcrypt
memcache
memcached
mhash
mysql
mysqli
mysqlnd
openssl
pcre
PDO
pdo_mysql
pdo_sqlite
Phar
posix
Reflection
session
shmop
SimpleXML
soap
sockets
SPL
sqlite3
standard
sysvmsg
sysvsem
sysvshm
tokenizer
xml
xmlreader
xmlrpc
xmlwriter
zip
zlib