magic constants

Question 1

__LINE__

Answer 1

The current line number of the file.

Question 2

__FILE__

Answer 2

The full path and filename of the file. If used inside an include, the name of the included file is returned.

Question 3

__DIR__

Answer 3

The directory of the file. If used inside an include, the directory of the included file is returned.

Question 4

__FUNCTION__

Answer 4

The function name as it was declared

Question 5

__CLASS__

Answer 5

The class name.

Question 6

__NAMESPACE__

Answer 6

The name of the current namespace.