php5-dev 5.2.3-1ubuntu4 (i386 binary) in ubuntu gutsy

 This package provides the files from the PHP5 source needed for compiling
 additional modules.
 .
 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.