What PHP modules does WHM/cPanel support?

The following PHP Modules are supported by cPanel/WHM at time of writing :

Bc Math
Calendar Support
Curl (Version 7.15.3)
Curl SSL Support (Version 2.8.28)
Dom XSLT
Exif
Flash
FTP
GD (Version 2.0.15)
GetText
Iconv (experimental)
Imap Module (Version 2004g)
Java (must already be installed, or install will fail)
Mb String
Mcrypt (Version 2.5.7)
Memory Limit (experimental)
Mhash (Version 0.8.18)
Ming Support (Not Recommended due to various problems) (Version 0.3beta1)
Magic Quotes
MM Session Module (Version 1.3.1)
Mysql Module
SNMP
Openssl Support
Discard Path
PDFlib (requires license for commerical use; see www.pdflib.com/pdffiles/PDFlib-Lite-license.pdf)
Pear
Postgresql (will break 7.2.x or earlier, please make sure you have 7.3.x or later installed)
Pspell Module
Sablot XSLT [may cause problems with chili!asp]
SafeMode
Sockets
Use System Mysql
Track Vars
Freetype Support
Versioning
WDDX
XML RPC
Zip
Zlib