Which of the following statements are correct?
__toString() 'is a class method that determines how the object should react if it is treated as a string.,__isset() 'is a class method called when the isset() or empty() functions are called on inaccessible properties.'

Question

Which of the following statements are correct?

Accepted Answer

__toString() 'is a class method that determines how the object should react if it is treated as a string.

Accepted Answer

__isset() 'is a class method called when the isset() or empty() functions are called on inaccessible properties. '

Answer

__referTo() 'is a class method that determines how the object should react if it is used as a' bridge 'with another class.

Answer

__set() 'is a class method that defines how the object should react if a method is not accessible.

Answer

__call() 'is a class method that defines how the object should react if a static context method is unreachable.

Question from the PHP7 test