What is the output of the following code?

What is the output of the following code?

An unbuffered database query will (choose two):
One common security risk is exposing error messages directly in the browser. Which PHP configuration directive can be disabled to prevent this?
What is the output of the following code?
What is the difference between the spaceship operator ( ) and the strcmpO function?
What is the output of the following code?

What exception type will catch the error raised by the expression 2 / 0?
Which of the following statements about SOAP are NOT true?
Given a DateTime object that is set to the first second of the year 2017, which of the following samples will correctly return a date in the format ‘2017-01-01 00:00:01 ’?
Under what condition may HTTP headers be set from PHP if there is content echoed prior to the header function being used?