namespace Foo\Bar;

use Foo\Bar;
use Foo\{Bar,Baz,Qux};
use Foo\Bar as Baz;
use function foo;
use const foo;
use function foo as bar;
use const foo as bar;

/*
 * comment
 * comment
 * comment
 */

define('FOO\BAR', 1);
define("FOO\\BAR", 1);

// comment
// comment
// comment

echo FOO\BAR . $baz . __DIR__;

# comment
# comment
# comment

class Foo extends Bar {
    public $foo = 1;
    public $bar = [];
    public function __construct() {
        $args = func_get_args();
        $this->foo = $args[0];
        $this->bar = (array) ($args[1] ?? []);
        $this->{$bar} = TRUE;
    }
}

$foo = array(1.5, true);
$bar = (array) $foo;

$$foo = 'bar';
${$foo} = 'bar';

$str = 'aaa
  bbb
ccc';

$str = "aaa
  bbb
ccc";

$str = "aaa\n  bbb\nccc";

$str = <<<AAA
aaa
aaa
aaa
  bbb
  bbb
  bbb
ccc
ccc
ccc
AAA;

$str = <<<'AAA'
aaa
aaa
aaa
  bbb
  bbb
  bbb
ccc
ccc
ccc
AAA;

$str = <<<"AAA"
aaa
aaa
aaa
  bbb
  bbb
  bbb
ccc
ccc
ccc
AAA;

$foo = new Foo;

$bar = function(array $baz) {
    return array_replace($baz, [null, null]);
};

echo $foo::class;

echo Foo::class;

namespace Foo\Bar\Baz;

namespace Foo\Bar\Baz {
    class Qux extends \Foo\Bar {}
    function qux() {
        return new Qux;
    }
}