When would you use classes and when would you use namespaces?
What is the output of this code?
What is the output of the following code?
Which of the following items in the $_SERVER superglobal are important for authenticating the client when using HTTP Basic authentication? (Choose two.)
What is the length of a string returned by: md5(rand(). TRUE);
Consider the following two files. When you run test.php, what would the output look like?