WP 02

Which is not a valid selector for CSS?

• p

• #p

• q

• .q

Which is correct according to the picture?

• border: 24;

• height: 192;

• margin: 40;

• width: 400;

To use PHP in HTML, one uses ...

• #include <php>

• <php> .... </php>

• <?php .... ?>

• <script language="php"> ... </script>

PHP variables must ....

• be declared

• be initialized

• end with a semicolon

• start with a dollar sign

Which use of the concatenation operator is wrong?

• echo .'Hello world';

• echo 'Hello'.'world';

• echo 'Hello'.' '.'world';

• echo $hello.$world;