1--TEST--
2Test mb_internal_encoding() function : error conditions - pass an unknown encoding
3--SKIPIF--
4<?php
5extension_loaded('mbstring') or die('skip');
6function_exists('mb_internal_encoding') or die("skip mb_internal_encoding() is not available in this build");
7?>
8--FILE--
9<?php
10/*
11 * Pass mb_internal_encoding an unknown encoding
12 */
13
14echo "*** Testing mb_internal_encoding() : error conditions ***\n";
15
16try {
17    var_dump(mb_internal_encoding('unknown-encoding'));
18} catch (\ValueError $e) {
19    echo $e->getMessage() . \PHP_EOL;
20}
21
22?>
23--EXPECT--
24*** Testing mb_internal_encoding() : error conditions ***
25mb_internal_encoding(): Argument #1 ($encoding) must be a valid encoding, "unknown-encoding" given
26