Ray Yao

About the Author

Ray Yao:

Certified PHP engineer by Zend, USA

Certified JAVA programmer by Sun, USA

Certified SCWCD developer by Oracle, USA

Certified A+ professional by CompTIA, USA

Certified ASP. NET expert by Microsoft, USA

Certified MCP professional by Microsoft, USA

Certified TECHNOLOGY specialist by Microsoft, USA

Certified NETWORK+ professional by CompTIA, USA