1--TEST-- 2Test mb_strstr() function : basic functionality 3--EXTENSIONS-- 4mbstring 5--FILE-- 6<?php 7echo "*** Testing mb_strstr() : basic functionality ***\n"; 8 9mb_internal_encoding('UTF-8'); 10 11$string_ascii = 'abc def'; 12//Japanese string in UTF-8 13$string_mb = base64_decode('5pel5pys6Kqe44OG44Kt44K544OI44Gn44GZ44CCMDEyMzTvvJXvvJbvvJfvvJjvvJnjgII='); 14 15echo "\n-- ASCII string: needle exists --\n"; 16var_dump(bin2hex(mb_strstr($string_ascii, 'd', false, 'ISO-8859-1'))); 17var_dump(bin2hex(mb_strstr($string_ascii, 'd'))); 18var_dump(bin2hex(mb_strstr($string_ascii, 'd', true))); 19 20 21echo "\n-- ASCII string: needle doesn't exist --\n"; 22var_dump(mb_strstr($string_ascii, '123')); 23 24echo "\n-- Multibyte string: needle exists --\n"; 25$needle1 = base64_decode('5pel5pys6Kqe'); 26var_dump(bin2hex(mb_strstr($string_mb, $needle1))); 27var_dump(bin2hex(mb_strstr($string_mb, $needle1, false, 'utf-8'))); 28var_dump(bin2hex(mb_strstr($string_mb, $needle1, true))); 29 30 31echo "\n-- Multibyte string: needle doesn't exist --\n"; 32$needle2 = base64_decode('44GT44KT44Gr44Gh44Gv44CB5LiW55WM'); 33var_dump(mb_strstr($string_mb, $needle2)); 34 35?> 36--EXPECT-- 37*** Testing mb_strstr() : basic functionality *** 38 39-- ASCII string: needle exists -- 40string(6) "646566" 41string(6) "646566" 42string(8) "61626320" 43 44-- ASCII string: needle doesn't exist -- 45bool(false) 46 47-- Multibyte string: needle exists -- 48string(106) "e697a5e69cace8aa9ee38386e382ade382b9e38388e381a7e38199e380823031323334efbc95efbc96efbc97efbc98efbc99e38082" 49string(106) "e697a5e69cace8aa9ee38386e382ade382b9e38388e381a7e38199e380823031323334efbc95efbc96efbc97efbc98efbc99e38082" 50string(0) "" 51 52-- Multibyte string: needle doesn't exist -- 53bool(false) 54