<?php
assert(0 && ($a = function () {
    global $a, $$b;
    static $c, $d = 0;
    unset($e);
    $x = isset($a) && !empty($b) || eval($c);
    $x = $a ? $b : $c;
    $x = $a ?: $c;
    $x = $a ?? $b;
    list($a, $b, $c) = [1, 2=>'x', 'z'=>'c'];
    @foo();
    $y = clone $x;
    yield 1 => 2;
    yield from $x;
}));

assert(0 && ($a = function &(array &$a, ?X $b = null) use ($c,&$d) : ?X {
    abstract class A extends B implements C, D {
        const X = 12;
        const Y = self::X, Z = "aaa";

        public $a = 1, $b;
        protected $c;
        static private $d = null;

        abstract function foo();

        static private function f1() {
            for ($i = 0, $j = 100; $i < $j; $i++, --$j) {
                $s[$i] = $a[$j];
            }
            foreach ($a as $key => &$val) {
                print "$key => $val\n";
            }
            while ($s[$i]) {
                $i++;
            }
            do {
                $i--;
            } while ($s[$i]);
            $x = foo($a + 1, 4, ...[1,2,3]);
            $x = ${$a . "_1"}();
            $x = A::foo();
            $x = ${$a . "_1"}::foo();
            $x = A::${$a . "_1"}();
            $x = $x->foo();
            $x = ${$a . "_1"}->foo();
            $x = $x->{$a . "_1"}();
            $x->a = C::C;
            ${$a . "_1"}->a = ${$a . "_1"}::C;
            $x->{a . "_1"} = C::C;
            $x = C::$z;
            $x = ${$a . "_1"}::$z;
            $x = C::${$z . "_1"};
            $x?->y;
            $x?->y();
            foo(bar: $x);
        }
    }
}));

assert(0 && ($a = function &(array &$a, X $b = null, int|float $c) use ($c,&$d) : X {
    final class A {
        final protected function f2() {
            if (!$x) {
                return 0;
            }
            if ($x == 1) {
                return 1;
            } else if ($x == 2) {
                return 2;
            } else if ($x == 3) {
                return 3;
            } else {
                if ($x == 9) {
                    return 9;
                }
L0:
                do {
                    switch ($x) {
                        case 4: break;
                        case 5: continue;
                        case 6: break 2;
                        case 7: continue 2;
                        case 8: goto L0;
                        default: return;
                    }
                } while (0);
            }
        }
    }
}));

assert(0 && ($a = function &(?array &$a, X $b = null) use ($c,&$d) : X {
    class A {
        use T1, T2 {
            T1::foo insteadof foo;
            T2::foo as bar;
            baz as public;
            ops as protected x;
        }
        use T3;
    }
}));

assert(0 && ($a = function &(array &...$a) {
    declare(A=1,B=2);
    try {
        $i++;
    } catch (MyException $e) {
        echo 1;
    } catch (Exception $e) {
        echo 2;
    } finally {
        echo 3;
    }
}));

assert(0 && ($a = function (): ?static {
    declare(C=1) { echo 1; }
    $x = '\'"`$a';
    $x = "'\"`$a";
    $x = `'"\`$a`;
    $x = "{$a}b";
    $x = "${a}b";
    $x = " {$foo->bar} ${$foo->bar} ";
    $x = " ${'---'} ";
    foo();
    \foo();
    namespace\foo();
    $x = foo;
    $x = \foo;
    $x = namespace\foo;
    $x = new foo();
    $x = new \foo();
    $x = new namespace\foo();
    if ($a) {
    } elseif ($b) {
    }
    if ($a); else;
}));

?>