php4 4:4.3.10-10ubuntu4.7 (i386 binary) in ubuntu hoary

 This package is a meta-package that, when installed, guarantees that you
 have at least one of the four server-side versions of the PHP4 interpreter
 installed. Removing this package won't remove PHP4 from your system, however
 it may remove other packages that depend on this one.
 .
 PHP4 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.
 .
 Homepage: http://www.php.net/