php5 5.3.3-1ubuntu10 (i386 binary) in ubuntu natty

 This package is a metapackage that, when installed, guarantees that you
 have at least one of the four server-side versions of the PHP5 interpreter
 installed. Removing this package won't remove PHP5 from your system, however
 it may remove other packages that depend on this one.
 .
 PHP5 is an HTML-embedded scripting language. Much of its syntax is borrowed
 from C, Java and Perl with a couple of unique PHP-specific features thrown
 in. The goal of the language is to allow web developers to write dynamically
 generated pages quickly. This version of PHP5 was built with the Suhosin patch.