1--TEST--
2readline_completion_function(): Basic test
3--EXTENSIONS--
4readline
5--FILE--
6<?php
7
8function foo() { }
9
10$data = array(
11    'foo',
12    'strtolower',
13    1,
14    1.1231
15);
16
17foreach ($data as $callback) {
18    try {
19        var_dump(readline_completion_function($callback));
20    } catch (\TypeError $e) {
21        echo $e->getMessage() . \PHP_EOL;
22    }
23}
24
25?>
26--EXPECT--
27bool(true)
28bool(true)
29readline_completion_function(): Argument #1 ($callback) must be a valid callback, no array or string given
30readline_completion_function(): Argument #1 ($callback) must be a valid callback, no array or string given
31