If you would like to check to see if a PHP variable has data, which of the following language constructs would you use?

Which is used to count total number of characters in a string?

The PHP operator, %, which returns the remainder of an equation is called the:

To suppress error messages to the user, preface the PHP statement with

PHP requires instructions to be terminated at the end of each statement with a

Which function can be used to determine if a file exists?

Which function can be used to count the number of rows returned?

Advantages of PHP-GTK include the following?

What are the Scope of variables?

Server object Methods?