}
interface c extends a, b
{
public function baz();
}
class d implements c
{
public function foo($a)
{
if (!isset($a)) {
return "foo";
} else {
return $a;
}
}
public function bar()
{
return "bar";
}
public function baz()
{
return "baz";
}
}
$d = new d();
echo $d->foo("tes");
echo "<br>";
echo $d->bar();
echo "<br>";
echo $d->baz();
echo "<br>";
