1--TEST--
2Test nullsafe property in special functions
3--FILE--
4<?php
5
6function dump_error(callable $callable) {
7    try {
8        var_dump($callable());
9    } catch (Throwable $e) {
10        var_dump($e->getMessage());
11    }
12}
13
14function foo() {}
15
16$foo = null;
17dump_error(fn() => strlen($foo?->foo()));
18dump_error(fn() => is_null($foo?->foo()));
19dump_error(fn() => is_bool($foo?->foo()));
20dump_error(fn() => is_int($foo?->foo()));
21dump_error(fn() => is_scalar($foo?->foo()));
22dump_error(fn() => boolval($foo?->foo()));
23dump_error(fn() => defined($foo?->foo()));
24dump_error(fn() => chr($foo?->foo()));
25dump_error(fn() => ord($foo?->foo()));
26dump_error(fn() => call_user_func_array($foo?->foo(), []));
27dump_error(fn() => call_user_func_array('foo', $foo?->foo()));
28dump_error(fn() => get_class($foo?->foo()));
29dump_error(fn() => get_called_class($foo?->foo()));
30dump_error(fn() => gettype($foo?->foo()));
31dump_error(fn() => func_num_args($foo?->foo()));
32dump_error(fn() => func_get_args($foo?->foo()));
33dump_error(fn() => array_slice($foo?->foo(), 0));
34dump_error(fn() => array_slice(['foo'], $foo?->foo()));
35dump_error(fn() => array_slice(['foo'], 0, $foo?->foo()));
36dump_error(fn() => array_key_exists($foo?->foo(), []));
37dump_error(fn() => array_key_exists('foo', $foo?->foo()));
38
39?>
40--EXPECTF--
41int(0)
42bool(true)
43bool(false)
44bool(false)
45bool(false)
46bool(false)
47bool(false)
48string(1) "%s"
49int(0)
50string(98) "call_user_func_array(): Argument #1 ($callback) must be a valid callback, no array or string given"
51string(77) "call_user_func_array(): Argument #2 ($args) must be of type array, null given"
52string(69) "get_class(): Argument #1 ($object) must be of type object, null given"
53string(55) "get_called_class() expects exactly 0 arguments, 1 given"
54string(4) "NULL"
55string(52) "func_num_args() expects exactly 0 arguments, 1 given"
56string(52) "func_get_args() expects exactly 0 arguments, 1 given"
57string(69) "array_slice(): Argument #1 ($array) must be of type array, null given"
58array(1) {
59  [0]=>
60  string(3) "foo"
61}
62array(1) {
63  [0]=>
64  string(3) "foo"
65}
66bool(false)
67string(74) "array_key_exists(): Argument #2 ($array) must be of type array, null given"
68