Fydji WS is a Web Services creation framework allowing to build services mapped to database operations, Java methods or other sources. It produces a Web application for services publishing and Java/JavaScript/PHP client classes for their invocation.
phpoetry dynamically exposes your PHP5 class to the browser as JavaScript hooks. It uses reflection, RMI, JSON, and the YUI library for quick and easy AJAX development.
InstantSVC (pronounced as Instant Services) provides a set of tools to ease Web Services development with PHP5. You just need to document your PHPcode with PHPDocumentor to generate Web Services from it - SOAP Services as well as RESTful Web Services.
SOAP-SQL generates a web service WSDL based on user-defined SQL statements with only a few lines of code. It relies on NuSOAP and PEAR MDB2 (DB abstraction layer), so it works with most any database. No PHP extensions required.