Which keyword is used to inherit a subclass from a superclass?

 Which one of the following property scopes is not supported by PHP? 

 PHP recognizes constructors by the name _________ 

 Which function is responsible for sending a custom message to the system log? 

 Which of the following function is used to get the value of the previous element in an array? 

In PHP ___ file mode open a file for write-only and erases the contents of the file or creates a new file if it doesn't exist.

 A function in PHP which starts with __ (double underscore) is known as... 

The correct way to use the DateTime class is to:

How do you define a function in PHP?