<?php

// This file has diverse symbol declarations and requirements, and can be used
// to test changes to phutil_symbols.php.

/**
 * @phutil-external-symbol function ext_func
 * @phutil-external-symbol class ExtClass
 * @phutil-external-symbol interface ExtInterface
 */
ext_func();
new ExtClass();
class L implements ExtInterface { }

function f() { }

(function () {
  // Anonymous function.
});

g();
$g();
$$g();

X::f();
call_user_func();
call_user_func('h');
call_user_func($var);

class A { }
class C extends B { }
class D extends C { }

new U();
V::m();
W::$n;
P::CONST;

interface ILocal extends IForeign { }
class CLocal extends INonlocal { }

strtoupper('');


// Various magic things.

die($x);
empty($x);
isset($x);
echo($x);
print($x);
exit($x);
include($x);
include_once($x);
require($x);
require_once($x);