return round($this->base * $this->height, 2);
}
}
abstract class test
{
public function set()
{
echo 'Set method in an abstract class';
echo "\n";
}
protected function get()
{
echo 'Get method in an abstract class';
echo "\n";
}
}
class impTest extends test
{
}
$r = new Rectangle();
$r->setValues(15, 3);
echo $r->surface() . "\n";
// echo 45
$t = new Triangle();
$t->setValues(15, 3);
echo $t->surface() . "\n";
// echo 22.5
$test = new impTest();
$test->set();
$test->get();
// PHP Fatal error: Call to protected method test::get() from context
