Quiz time!

Which of these PHP globals might contain user input?

• $_GET
• $_POST
• $_COOKIE
• All of the above!

How would I reverse a string in PHP?

• reverse()
• strrev()
• string_reverse()
• You can't reverse a string in PHP

How would I loop through the items in a PHP array?

• foreach()
• each()
• array_each()
• for $item of $array