Question:What is property overloading?
Ans: Property overloading continues to protect properties by forcing access and manipulation through public methods, yet allowing the data to be accessed as if it were a public property
Question:What does $GLOBALS means?
$GLOBALS is associative array including references to all variables which are currently defined in the global scope of the script.
Question:What are the advantages of object-oriented programming?
a. Simplicity
b. Modifiability
c. Re-usability.
d. Extensibility
e. Catch errors at compile time rather than at runtime
f. Reduce large problems to smaller
Question:What is object cloning?
Ans: It is difficult to copy an object, because all objects are treated as references rather than as values. If we try to copy a referenced object, it will simply point back to the addressing location of the original object. To remedy the problems with copying, PHP offers an explicit means for cloning an object is known as object cloning.
Question:What type of inheritance that PHP supports?
Ans: In PHP an extended class is always dependent on a single base class that is multiple inheritances is not supported. Classes are extended using the keywords ‘extends’