1--TEST--
2Test curl_multi_setopt() with options that take callabes
3--EXTENSIONS--
4curl
5--FILE--
6<?php
7
8$mh = curl_multi_init();
9try {
10    var_dump(curl_multi_setopt($mh, CURLMOPT_PUSHFUNCTION, 'undefined'));
11} catch (Throwable $e) {
12    echo $e::class, ': ', $e->getMessage(), PHP_EOL;
13}
14
15?>
16--EXPECT--
17TypeError: curl_multi_setopt(): Argument #2 ($option) must be a valid callback for option CURLMOPT_PUSHFUNCTION, function "undefined" not found or invalid function name
18