What is the correct way to send a SMTP (Simple Mail Transfer Protocol) email using PHP?

Which of the following will start a session?

For the following code: Which sequence will run successfully?

What enctype is required for file uploads to work?

Which is not an encryption method in PHP?

What function should you use to join array elements with a glue string?

The PHP syntax is most similar to:

Which PHP function do you call to begin a PHP session?

In PHP in order to access MySQL database, use the:

Include files must have the file extension '.inc'

Correct way to require the file 'time.inc' in a manner which will halt the script upon failure?