[root@machine]# php -v
PHP 5.3.13 (cli) (built: May 16 2012 14:23:01)
Copyright (c) 1997-2012 The PHP Group
Zend Engine v2.3.0, Copyright (c) 1998-2012 Zend Technologies

[root@machine]# php -m
[PHP Modules]
apc
bcmath
bz2
calendar
Core
couchbase
ctype
curl
date
dom
ereg
exif
fileinfo
filter
ftp
gd
gearman
geoip
gettext
gmp
hash
iconv
igbinary
imap
json
libxml
mbstring
mcrypt
memcache
mysql
mysqli
openssl
pcntl
pcre
PDO
pdo_mysql
pdo_sqlite
Phar
readline
Reflection
session
shmop
SimpleXML
soap
sockets
SPL
sqlite3
ssh2
standard
tidy
tokenizer
wddx
xml
xmlreader
xmlrpc
xmlwriter
xsl
zip
zlib

[Zend Modules]

[root@machine]# uname -a
Linux machine 2.6.18-238.40.1.el5 #1 SMP Thu Jun 28 07:33:25 EDT 2012 x86_64 x86_64 x86_64 GNU/Linux