1--TEST--
2Test mb_substr() function : basic functionality
3--SKIPIF--
4<?php
5extension_loaded('mbstring') or die('skip');
6function_exists('mb_substr') or die("skip mb_substr() is not available in this build");
7?>
8--INI--
9mbstring.internal_encoding=ISO-8859-1
10--FILE--
11<?php
12/* Prototype  : string mb_substr(string $str, int $start [, int $length [, string $encoding]])
13 * Description: Returns part of a string
14 * Source code: ext/mbstring/mbstring.c
15 */
16
17/*
18 * Test Basic Functionality of mb_substr with ASCII characters and multibyte strings.
19 */
20
21echo "*** Testing mb_substr() : basic functionality ***\n";
22
23$string_ascii = 'ABCDEF';
24//Japanese string in UTF-8
25$string_mb = base64_decode('5pel5pys6Kqe44OG44Kt44K544OI44Gn44GZ44CCMDEyMzTvvJXvvJbvvJfvvJjvvJnjgII=');
26
27echo "\n-- ASCII string 1 --\n";
28var_dump(mb_substr($string_ascii, 3));
29
30echo "\n-- ASCII string 2 --\n";
31var_dump(mb_substr($string_ascii, 3, 5, 'ISO-8859-1'));
32
33echo "\n-- Multibyte string 1 --\n";
34$result_1 = mb_substr($string_mb, 2, 7);
35var_dump(base64_encode($result_1));
36
37echo "\n-- Multibyte string 2 --\n";
38$result_2 = mb_substr($string_mb, 2, 7, 'utf-8');
39var_dump(base64_encode($result_2));
40
41echo "Done";
42?>
43--EXPECTF--
44*** Testing mb_substr() : basic functionality ***
45
46-- ASCII string 1 --
47string(3) "DEF"
48
49-- ASCII string 2 --
50string(3) "DEF"
51
52-- Multibyte string 1 --
53string(12) "peacrOiqng=="
54
55-- Multibyte string 2 --
56string(28) "6Kqe44OG44Kt44K544OI44Gn44GZ"
57Done
58