1--TEST--
2Test session_set_save_handler() : incorrect arguments for existing handler open
3--INI--
4session.save_handler=files
5session.name=PHPSESSID
6session.gc_probability=0
7--EXTENSIONS--
8session
9--FILE--
10<?php
11
12ob_start();
13
14echo "*** Testing session_set_save_handler() : incorrect arguments for existing handler open ***\n";
15
16class MySession extends SessionHandler {
17    public $i = 0;
18    public function open($path, $name): bool {
19        ++$this->i;
20        echo 'Open:', session_id(), "\n";
21        // This test was written for broken return value handling
22        // Mimic what was actually being tested by returning true here
23        return (null === parent::open());
24    }
25    public function read($key): string|false {
26        ++$this->i;
27        echo 'Read:', session_id(), "\n";
28        return parent::read($key);
29    }
30}
31
32$oldHandler = ini_get('session.save_handler');
33$handler = new MySession;
34session_set_save_handler($handler);
35try {
36    var_dump(session_start());
37} catch (TypeError $e) {
38    echo $e->getMessage(), "\n";
39}
40
41var_dump(session_id(), $oldHandler, ini_get('session.save_handler'), $handler->i, $_SESSION);
42?>
43--EXPECTF--
44*** Testing session_set_save_handler() : incorrect arguments for existing handler open ***
45Open:
46SessionHandler::open() expects exactly 2 arguments, 0 given
47
48Warning: Undefined global variable $_SESSION in %s on line %d
49string(0) ""
50string(5) "files"
51string(4) "user"
52int(1)
53NULL
54