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-- 9internal_encoding=ISO-8859-1 10--FILE-- 11<?php 12/* 13 * Test Basic Functionality of mb_substr with ASCII characters and multibyte strings. 14 */ 15 16echo "*** Testing mb_substr() : basic functionality ***\n"; 17 18$string_ascii = 'ABCDEF'; 19//Japanese string in UTF-8 20$string_mb = base64_decode('5pel5pys6Kqe44OG44Kt44K544OI44Gn44GZ44CCMDEyMzTvvJXvvJbvvJfvvJjvvJnjgII='); 21 22echo "\n-- ASCII string 1 --\n"; 23var_dump(mb_substr($string_ascii, 3)); 24 25echo "\n-- ASCII string 2 --\n"; 26var_dump(mb_substr($string_ascii, 3, 5, 'ISO-8859-1')); 27 28echo "\n-- Multibyte string 1 --\n"; 29$result_1 = mb_substr($string_mb, 2, 7); 30var_dump(base64_encode($result_1)); 31 32echo "\n-- Multibyte string 2 --\n"; 33$result_2 = mb_substr($string_mb, 2, 7, 'utf-8'); 34var_dump(base64_encode($result_2)); 35 36echo "Done"; 37?> 38--EXPECT-- 39*** Testing mb_substr() : basic functionality *** 40 41-- ASCII string 1 -- 42string(3) "DEF" 43 44-- ASCII string 2 -- 45string(3) "DEF" 46 47-- Multibyte string 1 -- 48string(12) "peacrOiqng==" 49 50-- Multibyte string 2 -- 51string(28) "6Kqe44OG44Kt44K544OI44Gn44GZ" 52Done 53