Absolutely. I am running Ubuntu 13.10 (GNU/Linux 3.11.0-20-generic x86_64)
minera@robot:~$ sudo dpkg -l|grep php
ii php5-cgi 5.5.3+dfsg-1ubuntu2.3 amd64 server-side, HTML-embedded scripting language (CGI binary)
ii php5-cli 5.5.3+dfsg-1ubuntu2.3 amd64 command-line interpreter for the php5 scripting language
ii php5-common 5.5.3+dfsg-1ubuntu2.3 amd64 Common files for packages built from the php5 source
ii php5-json 1.3.1+dfsg-2 amd64 JSON module for php5
ii php5-mysql 5.5.3+dfsg-1ubuntu2.3 amd64 MySQL module for php5
ii php5-readline 5.5.3+dfsg-1ubuntu2.3 amd64 Readline module for php5
oh well, this sounds weird, but probably it is an issue with the php version which is different from the Raspbian one. I should do some tests.
Thanks