Peter Adams · CC BY-SA 4.0

Working with fellow Technion student Zeev Suraski, he rewrote the PHP parser that became PHP 3 and later developed the Zend Engine underlying PHP 4. The pair founded Zend Technologies in 1999 to support the language and build tools for its developers. Gutmans led its research and development before becoming CEO, connecting an open-source programming language with the software and services needed to use it in businesses.