Job interview sample tests

PHP developer

1.what are the differences between echo and print?
2.Types of MySQL connection?
3.Handling regular expression?
4.Date format?
5.Mail function?
6.xml handling?
7.What is class, polymorphism, inheritance, constructor, object?
8.Date format?

See http://www.scribd.com/doc/5008379/PHP-Developer-Interview-Questions-Answers