Imran Ghani 
Introduction to PHP Web Services [EPUB ebook] 
PHP, JavaScript, MySQL, SOAP, RESTful, JSON, XML, WSDL

This book covers latest topics including RESTful, RPC, SOAP, Microservices, Webhook, WSDL and more. I’ve provided working examples with code throughout the book. The code and examples are in PHP, Java Script, JSON, XML, My SQL and WSDL. Each example has screen shot output so that you could match your output with the correct output I provide. I chose PHP to write this book because PHP is ready to develop RESTful and SOAP webservices. PHP is platform independent and widely used in developing data-driven Websites.