";
foreach ( $classes as $class )
printf ( "The class '%s' is %sdefined.
\n", $class, class_exists ( $class, FALSE ) ? '' : 'un' );
print "
";
foreach ( $interfaces as $interface )
printf ( "The interface '%s' is %sdefined.
\n", $interface, interface_exists ( $interface, FALSE ) ? '' : 'un' );
print "