nadia@aurora:~$ sudo aptitude search php5
iB  libapache2-mod-php5             - server-side, HTML-embedded scripting langu
iB  php5                            - server-side, HTML-embedded scripting langu
p   php5-cgi                        - server-side, HTML-embedded scripting langu
p   php5-clamavlib                  - PHP ClamAV Lib - ClamAV Interface for PHP5
p   php5-cli                        - command-line interpreter for the php5 scri
id  php5-common                     - Common files for packages built from the p
p   php5-curl                       - CURL module for php5
p   php5-dev                        - Files for PHP5 module development
p   php5-gd                         - GD module for php5
p   php5-imap                       - IMAP module for php5
p   php5-interbase                  - interbase/firebird module for php5
p   php5-json                       - JSON serialiser for PHP5
p   php5-ldap                       - LDAP module for php5
p   php5-mapscript                  - module for php5-cgi to use mapserver
p   php5-mcrypt                     - MCrypt module for php5
p   php5-mhash                      - MHASH module for php5
c   php5-mysql                      - MySQL module for php5
c   php5-mysqli                     - MySQL Improved module for php5
p   php5-odbc                       - ODBC module for php5
p   php5-pgsql                      - PostgreSQL module for php5
p   php5-pspell                     - pspell module for php5
p   php5-recode                     - recode module for php5
p   php5-snmp                       - SNMP module for php5
p   php5-sqlite                     - SQLite module for php5
p   php5-sybase                     - Sybase / MS SQL Server module for php5
p   php5-syck                       - YAML parser kit -- PHP5 bindings
p   php5-uuid                       - OSSP uuid module for php5
p   php5-xmlrpc                     - XML-RPC module for php5
p   php5-xsl                        - XSL module for php5