Php and-web-services-24402
2 likes927 views
This document discusses PHP and various web service standards. It provides an overview of PHP, describing it as an open source scripting language used to build various web applications and sites. It also summarizes different web service standards like SOAP, REST, and JSON that can be used with PHP. The document concludes that while there are many standards, PHP can handle the underlying implementation and that REST requires more coding than SOAP, but JSON may be better for client-side applications.
Php and-web-services-24402
- 1. PHP and Web Services CITOT - May 20th 2007 Bruno Pedro <[email protected]>
- 2. Summary • What is PHP? • Web Services • SOAP • REST • JSON • Conclusions PHP and Web Services 2
- 3. What is PHP? • PHP: Hypertext Preprocessor • Open Source Web scripting language • Created in 1994 • Syntax inherited from C, Java and Perl • Powerful, yet easy to learn PHP and Web Services 3
- 4. How is PHP used? • Content Management • Forums • Blogging • Wiki • CRM PHP and Web Services 4
- 5. Who uses PHP? Source: Zend PHP and Web Services 5
- 6. Why use PHP? • Used by 20M+ Web Sites around the globe • Community-maintained documentation • Code runs on UNIX, OSX and Windows • Backed commercially by Zend • Easy syntax PHP and Web Services 6
- 7. The PHP language Easy syntax! PHP and Web Services 7
- 8. Creating a function function declaration return value function call PHP and Web Services 8
- 9. Creating a class class declaration public method method call PHP and Web Services 9
- 10. Web Services Source:The Server Side (http://tinyurl.com/38umxt) PHP and Web Services 10
- 11. What are Web Services? • Interoperable interactions • Calls are made over a network • Lots of different standards • Popular Web sites use them PHP and Web Services 11
- 12. Requirements • PHP 5.2.2 • SOAP • simplexml • DOM • JSON PHP and Web Services 12
- 13. SOAP Source: Prentice Hall (http://tinyurl.com/33dcch) PHP and Web Services 13
- 14. SOAP • Simple Object Access Protocol • Usually an HTTP POST request • Call is encapsulated in XML • Response is an XML document • PHP handles everything PHP and Web Services 14
- 15. Server implementation namespace start a server assign a class handle incoming calls PHP and Web Services 15
- 16. Client implementation namespace endpoint display result PHP and Web Services 16
- 17. Output namespace result PHP and Web Services 17
- 18. SOAP • Support for SOAP 1.1, 1.2 and WSDL 1.1 • Handles simple and complex types • Very easy implementation • Output is quite bulky PHP and Web Services 18
- 19. REST «interface» /calculator/sum/ Resource GET - perform a calculation GET PUT - not used PUT POST - not used POST DELETE - not used DELETE http://example.com/calculator/sum/?x=121&y=233 PHP and Web Services 19
- 20. REST • Representational State Transfer • Usually an HTTP GET request • Call is made through GET parameters • Response is an XML document • Create response with DOM • Interpret response with simplexml PHP and Web Services 20
- 21. Server implementation handle incoming call create an XML document add elements output result PHP and Web Services 21
- 22. Client implementation endpoint arguments load XML document output result PHP and Web Services 22
- 23. Output result PHP and Web Services 23
- 24. REST • Interaction needs to be implemented • XML schema must be know beforehand • Complex types not handled natively • Output is usually RSS PHP and Web Services 24
- 25. JSON JSON Logo Source: json.org PHP and Web Services 25
- 26. JSON • JavaScript Object Notation • REST approach • Except response is not XML • Used on the client side • Create response with json_encode() • Interpret response in JavaScript PHP and Web Services 26
- 27. Server implementation handle incoming call generate result output JSON string PHP and Web Services 27
- 28. Client implementation endpoint arguments output result PHP and Web Services 28
- 29. Output result PHP and Web Services 29
- 30. JSON • REST approach • Handles simple and complex types • Calls can be made with AJAX • Can also be used on the server side PHP and Web Services 30
- 31. Conclusions • PHP is a powerful web scripting language • Too many Web Services standards • PHP handles all the internals • REST requires more coding than SOAP • Use JSON for client side applications • XML-RPC support is still experimental PHP and Web Services 31
- 32. Questions? PHP and Web Services 32
- 33. Resources • My blog: http://unfoldingtheweb.com/ • PHP Manual: http://www.php.net/ • SOAP: http://www.w3.org/TR/soap/ • REST: http://tinyurl.com/akhc7 • JSON: http://www.json.org/ PHP and Web Services 33